NEUROLOGY CASES (By Zach London and Aaron Boster) Case 1: A 72 year old retired beekeeper with a history of hypertension presented with sudden onset of word-finding difficulty and weakness of the right arm that started approximately 45 minutes prior to presentation. On examination his blood pressure was 148/82 and heart rate was 80. His speech was nonfluent, and he had difficulty with both naming and repetition. He had a right facial droop, and pronator drift of the right arm. Case 2: A 62 year old man said that he woke up with difficulty seeing out of his left eye. He reported a history of hypertension and paroxysmal atrial fibrillation, but had not been taking any medications. On examination, his blood pressure was 180/94, and his heart rate was 125 and irregular. The only neurologic abnormality on examination was a left homonymous hemianopia. Case 3: A 60 year old diabetic woman was brought to the Emergency Room by paramedics. She stated that when she woke up that morning and tried to get out of bed, she fell down and was unable to get up again. She had trouble moving her right arm and leg. On examination, her blood pressure was 170/92 and her heart rate was 90. She was alert and oriented, with normal speech and language. She had hemiparesis involving the right face, arm, and leg. Sensation was normal. She had an extensor plantar response on the right. Case 4: An 80 year old man came to clinic reporting episodic loss of vision in the left eye. He stated that each episode began suddenly, and gradually worsened over the course of 15-20 seconds, “like a shade being drawn over the eye.” The visual loss had always resolved completely within 5-10 minutes and was not associated with any pain or other neurologic symptoms. His examination was normal. Case 5: A 72 year old nun presented in the emergency room with approximately 14 hours of symptoms. Her friends stated that she was in her usual state of health until the previous afternoon. She had been bowling, and suddenly noted left-arm weakness and difficulty walking. She tried to “sleep it off” overnight, but her symptoms continued the next morning, and her friends from the convent brought her to the emergency room. On physical examination, she was afebrile with a blood pressure of 140/80 and a heart rate of 86. She had a prominent carotid bruit on the right side. Her left face, arm, and leg were weak, although her face and arm were much weaker than her leg. She had some decreased sensation on the left side, and extinction of left-sided stimuli to double simultaneous stimulation. She had an incomplete left homonymous hemianopsia and poor left conjugate gaze. Case 6: A 62 year old man with hypertension, diabetes, and hyperlipidemia was walking into the VA hospital, where he works as a custodian, when he had the sudden onset of vertigo, nausea, and hiccups. On physical examination, his blood pressure was 180/100. He was noted to have left facial numbness, as well as left ptosis and miosis. He was dysarthric and had difficulty swallowing. His left arm and leg were also ataxic. Case 7: A 31 year old yoga instructor presented to the emergency room at the urging of her husband. She reported five days of pain in her left neck and the back of her head that came on the day after she underwent chiropractic manipulation of her neck. She called the chiropractor, who told her that her symptoms were caused by “her nerves realigning themselves” and that she needed more frequent manipulations. However, over the last 24 hours, she had also begun to experience some vertigo, nausea, and left facial numbness. Her neurologic examination was significant for decreased pinprick sensation in the second division of the left trigeminal nerve. She also had right beating nystagmus in all directions of gaze and weakness of palate elevation on the left. The examination was otherwise normal. Case 8: A 58 year old man with a history of smoking, hypertension, diabetes and TIAs presented with six hours of numbness affecting his left face, arm and leg. His examination was significant for a blood pressure of 158/94, and decreased sensation to all modalities on the left side. He had no weakness or other neurologic deficits. Case 9: A 90 year old woman with a history of hypertension and mild dementia stopped taking her lisinopril approximately six months ago because her doctor went out of town the week she needed a refill. She presented to the emergency room with headache, balance problems, and incoordination of her limbs, as well as some vertigo and nausea. On examination, her blood pressure was 230/118, and she was profoundly ataxic. Initially, she was awake and alert, but over the course of the next hour, she became progressively obtunded to the point that she would not open her eyes and would only moan when stimulated. CT scan of the head showed a large hyperdensity in the cerebellar vermis with obliteration of the fourth ventricle and some evidence of cerebellar tonsilar herniation. Case 10 A 19 year old University of Michigan cheerleader received a blow to the left temple when he dropped one of the female cheerleaders and her elbow collided with his head. He lost consciousness briefly, but recovered fully. She was taken to the emergency room to have her elbow stitched up. Overcome with guilt, he decided to drive her there. While they were in the waiting room, he started experiencing a severe headache. He was put into a room, but when a nurse came to check on him 30 minutes later he had impaired consciousness and dilation of the left pupil. Case 11 A 28 year old woman came into clinic with her boyfriend, complaining of intermittent headaches for almost three months. The headaches started a day or two after one of her kickboxing students kicked her in the head. Over the last few weeks, the headaches have become more constant and more severe to the point that she had to cancel the rest of her kickboxing classes. Her boyfriend stated that she was drowsy all the time, and would sleep all day if not awakened. On examination, she was irritable and would say only that she had a headache. Her left face, arm, and leg were moderately weak, and she had hyperreflexia on the left side. Case 12 A 17 year old boy was brought to clinic by his father. The patient is a fullback for the local high school team. Last season, he suffered multiple minor head traumas, sometimes associated with brief loss of consciousness and brief retrograde amnesia. He reported that during the last two months, this had been happening more frequently, and the amount of trauma required to bring on each episode was less and less. Once, he was tackled and “blanked out” even though his head barely hit the ground. His father stated that his teachers had seen him “zone out” during class. He came to the clinic because his coach was threatening to cut him from the team. Case 13 A 14 year old girl was run over by a float in the 4th of July parade in a small town. She lost consciousness for several minutes. When she woke up, she was paraplegic and had no feeling in her lower extremities. She was initially admitted to an outside hospital, but was transferred to the University of Michigan after about three weeks because of blood pressure fluctuations. On physical examination, she had normal strength in the upper extremities and 0/5 strength in both lower extremities. Pinprick sensation was decreased below the level of the umbilicus bilaterally. Reflexes were 2+ and symmetric in the upper extremities, 3+ at the knees, and 4+ at both ankles with sustained clonus and bilateral extensor response to plantar stimulation. Case 14 A 36 year old HIV positive woman presented to the Emergency Room complaining of severe lower back pain and paresthesias in her buttocks and legs. She had an episode of urinary incontinence in the waiting room. On examination, she was febrile (103.3) and diaphoretic. Her low back was exquisitely tender. Strength was 3/5 in both lower extremities with bilateral extensor plantar responses. Her white blood cell count was 26,000/uL. Case 15 A 66 year old man underwent an elective repair of a large abdominal aortic aneurysm. Three days later, you received a call from the vascular surgery service. They stated that the patient had not moved his legs since waking up from the surgery. On examination, he had a Foley catheter in place. Strength was 5/5 in the upper extremities and 0/5 in the lower extremities. He had decreased pinprick sensation below the midthoracic region bilaterally. Vibration and position sense were intact throughout. Lower extremity reflexes were brisk and symmetric, and his toes were upgoing to plantar stimulation bilaterally. Case 16 A 23 year old man was in a motorcycle accident. He was not wearing a helmet. He did not lose consciousness. On presentation to the emergency room, he complained of left shoulder pain and an inability to move the fingers of his left hand. On physical examination his right pupil was larger than the left. He had a mild left ptosis, and sensory loss along the ulnar aspect of his left arm. He had moderate weakness of the intrinsic muscles of his left hand. Case 17 A 46 year old man has been experiencing neck and shoulder pain radiating down his radial forearm for the past month. It came on gradually, and has slowly been getting worse. On physical examination, strength was 5/5 throughout except for right elbow flexion (4/5), right supination (4+/5) and right wrist extension (4+/5). He reported altered sensation along his right radial forearm, thumb, and index finger. Biceps and brachioradialis reflexes were 2+ in the left arm and 1+ in the right arm. Otherwise, all reflexes were 2+ and symmetric. Case 18 A 34 year old woman was moving a refrigerator into her first house when she felt a sudden “pop” in her neck. She immediately developed soreness in her neck which radiated down her left arm. She presented to clinic a week later complaining of the same symptoms. On examination, strength was 5/5 throughout except for the left triceps and finger extensor muscles, which were 4/5. Sensation was mildly impaired to light touch and pinprick over the posterolateral arm and into her 2nd, 3rd, and 4th digits. The right triceps reflex was diminished. Case 19 A 40 year old man was brought to the emergency room by the paramedics after falling 40 feet off a cherry picker and landing on his back. On arrival he complained of extreme pain in his low back and leg weakness. He had both bowel and bladder incontinence. On exam, he had profound weakness of his lower limbs. Hip flexion was 3/5, but he had no movement of the knee or ankle. He was areflexic in the lower extremities with downgoing toes bilaterally to plantar stimulation. Plain films of his back demonstrated a fracture dislocation in his mid-lumbar spine. Case 20 A 58 year old tugboat captain with a long history of chronic low back pain presented to clinic complaining of new shooting pains in his leg. He stated that the pain began in the low back and radiated down the back of his left leg, across the knee, and down to the top of the foot. On examination, his shooting pains were reproduced when his hip was flexed with the knee in the extended position. He had mild weakness of left foot dorsiflexion and toe extension. Ankle inversion and eversion were also weak, especially inversion. Patellar and Achilles reflexes were 2+ and symmetric, and toes were downgoing to plantar stimulation. Case 21 A 66 year old man with along history of mild low back pain reported that for the past 2 months, he had been experiencing debilitating leg pain (left greater than right), that would only occur after he had been standing for 10 minutes or longer. The pain was located primarily in the buttocks and upper legs, and would gradually get better after sitting or resting for several minutes. On physical examination, tone, bulk, and power were normal in the lower extremities. Deep tendon reflexes were 2+ and symmetric at the knee and 1+ and symmetric at the ankles. Ultrasound examination of the blood flow in his legs was normal. Case 22 A 51 year old female weaver seeing her primary care physician mentioned that her hands had been numb for the past two years. The numbness was most prominent in her left thumb and was exacerbated by working her loom. She also complained about pain and paresthesias in her hands and wrists that woke her up at night. On examination, she had mild weakness of thumb abduction. She had paresthesias and decreased pinprick sensation, primarily over the left thumb and index finger. Phalen’s test was positive (i.e., when she held her hands together with wrists flexed, so that the dorsal aspects of both hands touched, it reproduced her symptoms.) She had no Tinnel’s sign (i.e. percussion of the median nerve at the wrist produced no symptoms.) Case 23 A 44 year old veteran, who worked as a firefighter, came to clinic because of impaired strength and dexterity in his right hand. He had always been a very athletic man, but over the last few months he could not lift free weights with his right hand without dropping them. Sometimes, he would get numbness between in the fifth digit of his hand when he flexed his right elbow. On physical examination, he had marked atrophy of the interossei and the hypothenar muscles in the right hand. Prominent weakness of finger abduction was noted. He had decreased pinprick sensation along the palmar surface of the small finger and the ulnar half of the ring finger. Reflexes were intact. Case 24 A 55 year old woman came to urgent care clinic and explained that she had awaked with right arm weakness three days earlier. The night before she had been drinking heavily, and she fell asleep on her right side with the arm flexed at the elbow. On physical examination, she had 2/5 strength in her right wrist and finger extensors, and 3/5 strength in her right brachioradialis. Elbow extension was 5/5. Pinprick sensation was reduced over the right first dorsal web space. Deep tendon reflexes were trace and symmetric throughout the upper and lower extremities. Case 25 A 42 year old woman underwent an elective breast reduction surgery. After waking from general anesthesia, she noted weakness of the right foot, and also numbness and tingling over the dorsum of the right foot. She was discharged with an appointment in the outpatient neurology clinic. When she was seen there two months later, there had been no significant change in her symptoms. On examination, there was 4/5 weakness of ankle dorsiflexion and eversion. Ankle inversion was 5/5. She had decreased pinprick sensation over the dorsum of the right foot. Reflexes were 2+ and symmetric throughout. Case 26 A 28 year old previously healthy man was half way through his dental hygienist board exam when he noticed that his left lip seemed to be sagging and he had difficulty closing his left eyelid. He finished the examination and drove himself to the emergency room. On physical examination, he had left facial weakness with flattening of the nasolabial fold and partial paralysis of eye closure. He was unable to wrinkle his forehead on the left. Facial sensation was normal and the rest of his neurologic examination was unremarkable. Case 27 A 55 year old man with hypertension and diabetes presented with the sudden onset of painless horizontal diplopia that was worse with left gaze. On examination, there was esotropia in primary position, worsened by left gaze. On testing of ocular pursuit movements, the left eye did not abduct fully, but other eye movements were within normal limits. The remainder of the cranial nerves were intact, and the rest of his neurologic examination was unremarkable. Case 28 A 34 year old woman with a history of polycystic kidney disease presented with the sudden onset of headache and oblique diplopia. On physical examination, the patient had a dilated, poorly reactive right pupil. The right eye was deviated down and out, and had impaired adduction, elevation, and depression. The left eye moved normally. The remainder of the neurologic examination was within normal limits. Case 29 A 51 year old ventriloquist came to clinic reporting periodic “attacks” of facial pain for the previous four months. He described momentary bursts of severe, unilateral, “stabbing” pain in his right cheek that came on spontaneously or with certain stimuli, such as brushing his teeth or shaving. Despite avoiding these activities, the attacks had increased in frequency and at the time of presentation were occurring almost daily. Physical examination is normal. Case 30 A 68 year old man with a history of hyperlipidemia and smoking was brought in by the paramedics after suffering from a single generalized tonic clonic seizure that lasted about 2 minutes. By the time you saw him in the emergency room, he was back to his baseline. His wife then confided in you that he had been acting “funny” for about a month. He had been belligerent with family members and had been neglecting basic hygiene. He had also been incontinent of urine on more than one occasion and did not seem to care. He has lost 30 pounds since his last doctor’s appointment six months ago. His exam was normal except for papilledema in both eyes, pronator drift of the left arm and a hacking cough. Case 31 A 50 year old woman with no significant past medical history presented with complaints of episodic dizziness, tinnitus, and mild right-sided hearing loss. These symptoms had become progressively more frequent and more severe since onset. The patient had a normal general physical examination and no abnormalities on neurologic examination other than the hearing loss in her right ear. MRI showed a 1.5 cm enhancing mass in the right cerebellopontine angle, with a tail that entered the internal auditory canal. Case 32 A 60 year old man presented because of daily headaches for about six weeks. He said that he had been awakening every day with a headache, and the need to vomit. About two weeks ago, he had begun to have word-finding difficulties, as well, and could no longer work as a cattle auctioneer. On physical examination, he had bilateral optic disc edema. He was able to name 4 out of 8 objects, and could not repeat the phrase, “Shiver Me Timbers.” He had pronator drift of the right arm. Neurologic examination was otherwise normal. Case 33 A 4 year old boy presented to clinic with four weeks of headaches and three days of nausea and unsteadiness. On physical examination, the patient was awake but sleepy and irritable. He had bilateral papilledema. He had significant truncal ataxia and bilateral dysmetria. Case 34 A 20 year old assembly line worker at a Johnson’s Jigs and Fixtures presented with three months of galactorrhea. She reported five years of amenorrhea, with irregular menses before that, starting at age 13. She reported occasional headaches, but had no other symptoms. On physical examination, she had bitemporal hemianopia on confrontation testing of visual fields. Case 35 A 30-year-old woman was referred by her internist because for the previous 3 weeks, her left foot had a tendency to drag after the fourth mile of her daily 5-mile run. Four years ago she had a similar problem with her right foot, but had attributed it to a twisted ankle, and the symptoms had spontaneously resolved over the next month. Her only other neurologic symptom had been a partial loss of vision in her left eye eight months ago. That had developed gradually over 4 days and resolved over a few weeks; she had attributed it to the stress of owning a new puppy and starting a new job. Her examination was normal except for a left afferent papillary defect and mild hyperreflexia in her left lower extremity. Case 36 A 50-year-old right handed man woke with the sensation of numbness and tingling over his legs and trunk to the level of his nipples. He was able to walk with some difficulty, stating he could not feel his feet. The next day his legs began to feel stiff and tight. Two days later he experienced urinary retention. On physical exam his arms had normal strength, sensation and reflexes. He had decreased sensation below his nipples, increased tone in his legs, and brisk lower extremity reflexes. Plantar responses were extensor bilaterally. Rectal tone was poor. Case 37 A 42 year old female first developed leg weakness and spasticity about 8 years ago. She went from walking independently to being wheelchair bound over the course of two years. After that, she noticed that her right arm started to become stiff and weak. At the time of presentation, she was unable to feed herself, and required intermittent urinary catheterization. She complained of blurred vision, especially when looking to the left, and “electric shock-like pain” down her spine with neck flexion. She also complained of profound fatigue, which is worse during the hot summer months. On her physical exam, she had impaired adduction of the right eye. She was weak and spastic in all four extremities, with hyperreflexia and upgoing toes to plantar stimulation bilaterally. Case 38 An 8-year-old girl was noted by her teacher to be intermittently inattentive in the classroom. She would stare with a blank expression on her face for several seconds at a time. She would not respond to her name being called and sometimes had rapid fluttering movements of her eyelids. Once the staring ceased, she would immediately return to baseline. Her pediatrician was able to provoke one of the spells by having the child hyperventilate in the office. Physical examination was normal. Case 39 A 27-year-old man began to experience stereotyped spells, that always started with an unpleasant sensation in his abdomen. He would then become unresponsive to those around him and start staring and picking at his shirt buttons. Next, he would fall to the floor and have generalized stiffening of all four extremities followed by shaking rhythmically for 30 seconds. He often bit his tongue during these spells and was usually incontinent of urine. Afterwards, he was confused for approximately 1 hour. The patient’s most recent spell was two weeks ago. Physical examination today was normal. Case 40 A 34-year-old woman on phenytoin for a history of complex partial seizure disorder was in her usual state of good health when she was witnessed to have a generalized tonic-clonic seizure in the pet store one afternoon. When EMS arrived, the patient had a second generalized tonic-clonic seizure. EMS reported generalized stiffening of all four extremities followed by clonic movements, cyanosis, frothing at the mouth, and urinary incontinence. The patient has 1 more seizure without recovering consciousness before reaching the local emergency room. Case 41 An 18-year-old college freshman with no significant past medical history was brought to the emergency department because of a generalized seizure. He had completed exams on Friday and had been drinking heavily over the weekend to celebrate. His friend said that on Saturday night he had passed out in a stairwell, and shortly thereafter began to have generalized shaking movements that lasted almost two minutes, and he was confused for about a half an hour afterward. The patient was back to baseline at the time of presentation to the emergency room and had no memory of the event. His physical exam was normal. Case 42 A 40 year old woman reported almost daily spells ever since a month ago, a few days after her husband shoved her roughly and told her that he wanted a divorce. She described slowly losing control of her legs and crumbling to the floor. She denied loss of consciousness during these spells, but reported that she was not able to speak to people or follow commands during these spells. Her mother, who had witnessed many of these spells, stated that after falling to the ground, her head would shake from side to side and her pelvis would thrust wildly. She did not experience any oral trauma or incontinence of urine during the spells. The spells lasted approximately 1 to 2 hours and only occurred after dinner. Examination at the time of presentation was normal. Case 43 A 33 year old man with a known right frontal astrocytoma experienced sudden uncontrolled twitching of the fingers of his left hand. The twitching progressed to include the entire hand, followed by the arm and shoulder over the course of one minute. It than subsided after another minute. He remained conversant and was fully conscious during the entire event. Case 44 A 30-year-old woman came to the emergency room because of severe headache for the previous eleven hours. She first started having headaches when she was in high school, but they used to occur only about four times a year. In the last year the frequency had increased, and the patient now had headaches up to twice a week. All of her headaches started on one side (usually the right) and progressed to involve the entire head. The headaches were associated with photophobia, phonophobia, and nausea. Her headaches would usually resolve within two hours if she would lie down in a dark room and take acetaminophen. Her current headache was similar to her previous headaches, but had not improved despite taking six acetaminophen pills. Her examination was normal. Case 45 A 26-year-old geophysics graduate student reported occasional headaches since her undergraduate years. They always started with “squiggly lines” in her visual fields and dizziness. These symptoms resolved in approximately fifteen minutes and were followed by debilitating pain behind her left eye which radiated to her temple and occiput. She would usually throw up when the pain became severe. Lights and sounds bothered her, and she would usually put a towel over her eyes and try to lie still until the headache passed, which was usually several hours or longer. Case 46 A 56-year-old circus worker suffered from 4 weeks of explosive headaches. He stated that they would come on very suddenly each day at 2:00am. The headaches were only on the right side of his head, and were associated with tearing of his right eye and right nasal congestion and discharge. They typically lasted 45 minutes, during which time he would go back to his trailer and bang his head against the wall. He was usually pain-free by 3:00 am and able to fall back to sleep, but he then had trouble waking up in time to feed the lions at 5:00am. He had experienced the exact same thing several years ago, and the episodes had abated after about two months. Case 47 A 19-year-old woman was evaluated by her family doctor for a four week history of headaches and a two week history of transient blurry vision, nausea and vomiting. She had started tetracycline for treatment of her acne three months earlier. On physical exam papilledema was present bilaterally. A contrast MRI was normal. Case 48 A 78-year-old woman presented with a 2 month history of superficial head and face pain, maximal over the left temple and suboccipital region. She also noticed that after a few seconds of chewing bubble gum, she would experience jaw pain. The pain would resolve as soon as she stopped chewing. Blowing bubbles did not exacerbate the pain. On examination, her scalp was tender to the touch over the left temple. Case 49 A 33 year-old female with newly diagnosed hypertension presented to the emergency room several hours after suddenly experiencing a severe headache, photophobia, stiff neck, and nausea. She denied concurrent illnesses. Temperature was 98.0 degrees. Blood pressure in the emergency department was 220/110. She became obtunded in the emergency room, and within an hour she no longer followed commands or produced any spontaneous speech. On cranial nerve exam her left pupil was dilated and poorly reactive to light. Case 50 A 55 year old woman presented with ongoing headaches, occurring once or twice a week. She described a vice-like squeezing pressure across her forehead and the back of her neck. She was in the process of moving to a new house, and the stress associated with the move seemed to make her headaches worse. She was otherwise in good health, and denied nausea, vision changes, numbness or tingling, neck stiffness, or fevers. Case 51 A 46 year-old man was brought to the emergency room by his brother for evaluation of headaches and fever. He had been sick for a couple days with a “sinus infection,” but on the day of presentation, he developed a severe headache. In the emergency room his temperature was 104 degrees F. He appeared to be very uncomfortable. His neck was stiff and very sensitive to passive manipulation. A head CT without contrast was performed and was normal. A lumbar puncture was performed, and the opening pressure was elevated. The CSF studies were as follows: WBC 1550 with 80% segmented neutrophils, RBC 10, Glucose 30, Protein 57. Case 52 A 50-year-old retired autoworker was brought to the emergency room by her husband for evaluation of the worst headache of her life. That morning she had developed a severe bifrontal headache with neck stiffness and light sensitivity. She had vomited twice in the car en route to the hospital. On exam she was febrile to 101 degrees F and in mild distress. Her neck was stiff and very sensitive to passive manipulation. Her discs were flat on funduscopic exam, and the remainder of her neurologic exam was normal. Head CT showed no bleed. A lumbar puncture was performed, and the opening pressure was within normal limits. CSF studies were normal except for a WBC of 8 with lymphocytic predominance. Case 53 A 52 year old homeless woman with diabetes was found unresponsive in an off-duty bus. On exam, temperature was 104 degrees F. She had poor dentition with carious teeth and exudative lesions in her gums. She did not respond to visual or auditory stimuli; to painful stimuli she would moan and withdraw her left leg, but not her right. Funduscopic exam revealed mild papilledema on the left. Plantar response was extensor on the right. During the examination, the patient had a 30 second generalized tonic clonic seizure. Case 54 A 38 year old woman had a fifteen minute period of hypotension during a mitral valve repair surgery. After the surgery, the patient was “unresponsive,” so neurology was consulted. On physical examination, the patient’s eyes were open and pupils were responsive to light. Respirations were intact. She did not speak and did not respond to voice. She did not track objects but did appear to look randomly around the room. The medical staff noted that she had sleep-wake cycles. Motor tone was flaccid. Case 55 A 20 year old was using a chainsaw to cut high branches near his house when he cut through a high voltage power line. He fell from the ladder and was immediately unresponsive. The paramedics were called to the scene and found the patient in asystole. He was intubated and cardioverted back to normal sinus rhythm after being down for approximately 20 minutes. When he arrived in the emergency room, he was unresponsive to all stimuli, including sternal rub. He took no spontaneous breaths. His pupils were fixed and dilated in mid-position. His oculocephalic and vestibulo-ocular reflexes were absent. Gag and corneal reflexes were also absent. Deep tendon reflexes were intact. Head CT and basic laboratory studies were all within normal limits. The next day, his exam was unchanged. Case 56 A 49 year old man came to clinic because of excessive daytime somnolence for approximately six months. He reported that he slept at least seven hours a night, but in the mornings he felt “unrefreshed and headachey.” His wife accompanied him today, and started that she had started sleeping in a different room because he was a loud snorer. She also noted that he often “stopped breathing” for several seconds at a time during his sleep. On physical examination, the patient was overweight (242 pounds) with no focal neurologic deficits. Case 57 A 29 year old man reported that he had been “falling down” frequently over the last five years. He said that when he heard a funny joke or got angry about something, he would gradually collapse to the ground. He reported excessive sleepiness and the need for frequent naps during the day. He also reported vivid hallucinations while falling asleep. He also described some terrifying episodes that occurred after a nap, in which he was unable to move or speak for seconds to minutes, even though he felt wide awake. His physical examination was within normal limits. Case 58 A 60 year old man was brought to clinic by his wife, who claimed that he had been “acting out his dreams” for several years. Sometimes he would scream and kick, or even fall out of bed and start flailing his arms violently. One time, he actually punched her repeatedly while he was sleeping. If she tried to wake him up, he would awake immediately, and describe a dream that correlated with his actions. Physical examination was within normal limits. Case 59 An 80 year old woman with a history of chronic obstructive pulmonary disease (COPD), diabetes mellitus, and chronic low back pain was brought in from the nursing facility where she lived because of mental status changes. Her caregivers stated that at baseline, she was alert, conversant, and largely independent. However, on the morning of presentation, she was found to be confused and irritable, and “She kept saying the F-word.” On examination, her temperature was 99.0, her blood pressure was 94/50, and her oxygen saturation was 92% on room air. She had waxing and waning alertness, and was not oriented to place or time. She was sleepy, and very uncooperative with the exam. Cranial nerves were intact and she was moving all four extremities equally. Her reflexes were symmetric, but when you tried to test them, she said the F-word. Examination was otherwise normal. Case 60 A 77 year old woman was brought to clinic by her family because of “short-term memory loss.” Her son noted that the patient began having problems with her memory about three years ago. Specifically, she was misplacing things, forgetting the names of acquaintances, and having difficulty managing her own finances. Over the last year, she began getting lost while driving, confusing the names of her own children, and wearing dirty clothing. On cognitive examination, she was oriented to the year but not the date or month. She knew she was in a doctor’s office but did not know what town it was in. She could not recount any recent major news events. She was able to name a finger and a watch, but not a thigh or a lapel. She was able to draw a clock, but could not draw the hands to indicate 10:15. She could repeat three words, but could not recall any of them after five minutes. General neurologic examination was normal. Case 61 A 50 year old man was brought to clinic by his family who felt he was depressed. Over the last two years, he had become socially withdrawn. He had made inappropriate comments to his family, including comments of a sexual nature to strangers. He had locked his dog in the basement without food for three days because “it was getting fat.” Over the last six months, his family had noted progressive cognitive decline, as well. The decision to seek medical attention was prompted by an episode two months ago when he was arrested for taking his clothes off in a Taco Bell. On cognitive testing, he had profound difficulty with naming and abstract reasoning, and mild memory impairment. General neurologic examination was otherwise normal. Case 62 A 70 year old man presented to clinic with three years of progressive cognitive decline. His wife tells you, “Some days he seem fine and other days his thinking is way off.” She reported that some days, he had hallucinations of children walking around the house, or cows grazing in their yard. Over the last six months, he had begun to move more slowly. On cognitive examination, he had mildly impaired orientation and verbal recall. He was completely unable to draw interlocking pentagons or mimic sequential hand gestures. On general neurologic examination, he had a somewhat masked face. He had mild cogwheel rigidity in both upper extremities. He performed fine finger movements slowly and clumsily. No tremor was present. He had a slow, shuffling gait. Case 63 A 70 year old man with a history of hypertension presented to clinic with two years of progressive memory and balance problems, as well as recent onset of urinary incontinence. On cognitive examination, the patient had impaired memory, was unable to perform simple calculations, and could not draw interlocking pentagons. Language was normal. On general neurologic examination, the patient had a slow, wide-based gait. Case 64 A 12 year old boy presented to clinic with a two year history of abnormal behaviors. His mother said that the first thing that she noticed was episodic blinking and eye rolling. After a few months, this gradually subsided but was replaced with episodes of twitchy shoulder shrugging. A few months later he developed episodes of grunting, tongue clicking or humming. The patient stated that he had a very strong desire to perform each tic, but could overcome that desire for a short period of time if he tried. On examination, the patient had multiple episodes of eye-blinking during the examination, and occasional grunting. The remainder of his exam was normal. Case 65 A 16 month-old girl was referred by her pediatrician for evaluation of leg weakness and hand tremors. She was the product of normal pregnancy and uncomplicated vaginal birth. The patient was crawling by 9 months and since about 12 months she was able to walk holding onto furniture. However, she never developed the ability to walk independently. On neurologic examination, cognition was normal for age. She had decreased tone and strength in all four extremities, most prominently in the lower extremities. There were no sensory abnormalities. Reflexes were completely absent throughout. Case 66 An 8 year old boy was brought to the pediatrician because of a “lazy left eye” over the past six weeks. Other than a mild learning disability, he had no significant past medical history. On examination, he had decreased visual acuity in the left eye (20/200) with a left relative afferent pupillary defect, temporal visual field deficits, and a pale optic disc. Small hematomas and nodular clumps of pigment were noted in both irises. His general examination was significant for axillary freckling and approximately ten café au lait spots on his back, chest, and extremities. An MRI of the patient’s brain showed an enhancing-mass on the proximal portion of the left optic nerve. Case 67 A 6 year old girl presented to clinic with lifelong stiffness and weakness in both legs. She had been born five weeks prematurely via breech delivery. She was delayed in all major motor and cognitive milestones, but had not regressed in any way. On physical examination, the patient had profound spasticity in both legs, with clonus at both the knees and ankles and upgoing toes to plantar stimulation. Case 68 A 7 year old boy was brought to clinic with new onset seizures. His parents noted that for the last two years he had a short attention span and difficulty following instructions. Over the last year, his speech had become progressively slurred, and he had intermittent urinary and bowel incontinence. His cognition had also declined. He had a past history of intermittent vomiting and dehydration since he was two years old, and his skin had been excessively tan since he was four years old. On physical examination, he had poor visual acuity and a spastic dysarthria. Strength was within normal limits, but the patient’s reflexes were diffusely brisk, and he had upgoing toes bilaterally. Case 69 A 6 month old boy was brought to the emergency room by his mother, who reported that he fell out of his crib onto his head the night before, and had been “acting weird” since then. He had been feeding poorly and vomited several times. On general exam, the baby has bruises on his head, shoulders, and neck. He was lethargic and irritable. His head size was increased and his fontanel was tense. Retinal hemorrhages were noted bilaterally on funduscopic examination. Case 70 A 71-year-old man complained of “shakiness” in his left hand beginning 8 months ago. He was otherwise in good health and taking no medications. He provided a clear, concise history. On exam his face was expressionless and he blinked infrequently, although his facial muscles activated symmetrically. He had a prominent resting tremor of his left arm that improved with volitional movement. There was some cogwheel rigidity on the left and impaired rapid movements of the left hand. He had a stooped posture and took small shuffling steps. Arm-swing was decreased on the left, and the patient took six steps to turn around. Case 71 A 50 year old woman presented to clinic complaining of tremor in her hands. The tremor had been present for about three years, and had gotten worse over the last six months. It was present equally in both hands and she noticed it most when trying to hold a magazine or a cup of coffee. It was worse with stress and better with alcohol. Therefore, she frequently drank 2-3 ounces of vodka before having dinner with her in-laws. On physical examination, the patient had a high amplitude 6-Hz postural and kinetic tremor that extinguished with rest. Muscle tone, limb coordination, posture and gait were all normal. Case 72 A 28 year old woman with a ten year history of bipolar disorder was referred to neurology clinic by her primary care doctor for evaluation of “tics.” The patient’s husband reported wildly fluctuating mood changes and progressively impaired cognition over the last five years. On examination, she had mild dysarthria. Involuntary distal twitching and dancing movements of her hands and toes were noted. Her gait was broad-based and she was unable to walk in tandem. Case 73 A 15 year-old girl presented to the clinic with six months of progressive cognitive decline, irritability and tremor. On examination she had hypersalivation and diminished facial expression. Irregular regions of muddy brown discoloration were present on her corneas. She had a wing-beating tremor and impaired handwriting. Case 74 A 41 year-old woman presented with a ten year history of involuntary head rotation to the right. It was present at all times, but exacerbated periodically by a sharp jerking movement to the right. The involuntary movements were exacerbated by anxiety. She was on no medications. Other than the episodes that she described, her physical examination was normal. Case 75 A 60-year-old man with no past medical history stated that his speech had become progressively more unintelligible over the last year. Recently, he began having problems with “food going down the wrong tube.” He also noticed that he was having difficulty with walking and his hands and feet were getting tired more easily. On physical exam, fasciculations were noted in his tongue, trapezius, and quadriceps muscles. He had atrophy in the intrinsic muscles of his left hand and right foot and weakness in these areas. Reflexes were 3+ diffusely, with an upgoing toe on the left to plantar stimulation. Sensory exam was normal. Case 76 A 58 year old boiler inspector from Gary, Indiana presented to clinic for evaluation of numbness and pain in his feet. The symptoms started approximately five years ago in his toes, and gradually spread to involve both feet. He described the pain as burning in nature, and more bothersome at night. He said he was in perfect health and had not seen a doctor since his army physical at age 20. On physical examination, he had decreased pinprick sensation below midshin and absent vibration and position sense below the ankle. Upper extremity reflexes were 2+, patellar reflexes were 1+, and ankle jerks were absent. The patient’s gait was mildly wide-based and Romberg sign was positive. Case 77 A 30-year-old man presented to the emergency room with lower extremity tingling and difficulty walking. He developed back pain and toe tingling three days prior, and the other symptoms had progressed since then. On examination, he had mild bilateral facial weakness and weakness of all four extremities distally, with relative sparing of the proximal muscles. Sensation was intact, but the patient reported “abnormal sensations” distally in all four limbs. Reflexes were absent throughout. Case 78 A 40 year old man presented because of progressive leg weakness. He stated that he had always had high-arched feet, and as a child, he was always the slowest runner and could not ice skate. When he was a teenager, he began to have more problems with his feet and his ankles would sometimes give out on him for no reason. During the last two years, he noticed progressive numbness in his feet. He had been tested for diabetes, but did not have it. On examination, he had wasting of the intrinsic hand muscles and calves with a pes cavus deformity. Strength was full proximally, but 4/5 in the intrinsic muscles of the hands and feet. Temperature and pinprick sensation were diminished to mid-calf and the wrist. He was areflexic. Romberg sign was positive. Case 79 A 34 year-old woman came to her physician because of fluctuating double vision. She stated that when she woke up in the morning, she felt fine, but as the day wore on, she would develop horizontal diplopia. She also reported episodic slurred speech and swallowing difficulties. On physical examination, she developed bilateral ptosis after trying to sustain upgaze for 30 second. Examination was otherwise normal. Case 80 A 4-year-old boy was brought to his pediatrician because of gait abnormality. He was the product of an uncomplicated birth and delivery. He did not walk until 18 months of age, and when he did start walking, he would walk on his tiptoes and waddle. His parents reported that he fell frequently and had difficulty getting up. On physical examination, he had large calves. He was weak in the deltoids, biceps, and hip girdle muscles, but relatively strong distal muscles. Case 81 A 50 year old man reported weakness and fatigue for the past 2-3 months. He was having progressively more difficulty with certain tasks such as combing his hair, lifting his brief case, or climbing stairs. He initially denied talking or swallowing problems, but eventually admitted that he choked a few times when trying to eat steak too fast. He had no problems with fine motor activities, such as buttoning his shirt or writing. On physical examination, the patient had 4/5 strength in neck extension, as well as the proximal muscles of his upper and lower extremities symmetrically. Sensation and reflexes were normal.