I. II. III. IV. Case History a. Patient Demographics: 52 y.o. Caucasian female b. Chief Complaint: Patient presents to ER with c/o severe, aching, constant eye pain (7/10) OS that radiates to the V1 area with associated ptosis, photophobia, temporal visual field loss and cranial nerve VI palsy OS. c. OHx: simple hyperopia / presbyopia OU; MHx: adrenal insufficiency, allergic rhinitis, anxiety disorder, chronic thyroiditis, hypothyroidism, h/o thyroid nodule, s/p rt lobectomy, depression, GERD, lumbago, torticollis, s/p botox, venous insufficiency, s/p appendectomy, s/p cervical vertebral fusion & laminectomy, s/p TAH-BSO, s/p tonsillectomy. d. Medications: calcium, hydrocortisone, diazepam, lidoderm 5% patch, morphine, MVI, synthroid. e. Other salient information: The patient reported no history of alcohol or recreational substance abuse, but admitted to nicotine dependence. She was employed as a county clerk. She was oriented to time, person, & place; her mood was appropriate, but she appeared distressed. Pertinent Findings a. Clinical: Best corrected distance visual acuity at presentation OD: 20/20-, OS: 20/25; pupils 4/6, ¾ RRL, no APD; EOMS: FROM OD, abduction deficit OS; CF: FTFC OD, constricted temporal hemifield OS; CT: 4∆ constant Lt ET; Ishihara CV: 12/12 OD, OS; MRD1: OD: 1 mm, OS: 0 mm, MRD2: OD: 4 mm, OS: 2 mm; slit lamp: adnexa: +hydrosis OD, OS, lids/lashes: ptosis & reverse ptosis OS, conjunctiva: trace diffuse injection OD, OS, cornea: clear OD, OS, iris: flat / blue OD, OS, A/C: narrow & quiet OD, OS; tonometry: 12 mmHg OD, OS; DFE: lens: 1+ NS OD, OS, optic nerve 0.60 healthy rims, OD, OS; unremarkable macula, vitreous, vessels, & periphery OD, OS. b. Physical: BP: 102/64, Temperature 97◦ F, CN exam: Lt V1 hypoesthesia c. Laboratory studies: CBC w/ diff, CMP, toxic screen, ESR, CRP, ANA w/ reflex titer, TFT, RPR w/ MHA-TP reflex, ACE d. Radiology studies: CXR, CT head w/o contrast, CTA head & neck, MRI brain & orbits w/ & w/o contrast w/ attention to the cavernous sinus using 1.5 mm cuts, MRV. e. Others: UA, EKG, Humphrey visual fields, gonioscopy, lumbar puncture w/ opening pressure, CSF analysis & cytology Differential diagnosis a. Primary / leading: Tolosa-Hunt Syndrome b. Others: Tumor / mass, meningitis, neurosyphilis, SLE, leukemia / lymphoma, paraneoplastic disease, Raeder paratrigeminal neuralgia, CNS vasculitis, neurosarcoid, tuberculosis, carotid artery aneurysm, carotid artery dissection, carotid-cavernous fistula, cavernous sinus thrombosis, Wegener granulomatosis, polyarteritis nodosa, multiple sclerosis, and CVA. Diagnosis & Discussion V. a. Elaborate on the condition: Tolosa-Hunt Syndrome is a painful ophthalmoplegia caused by nonspecific inflammation of the cavernous sinus or superior orbital fissure. It is a rare condition that is considered a diagnosis of exclusion. b. Expound on unique features: In this case, all testing including neuroimaging studies were normal. Upon initiation of oral prednisone, the expected exquisite response within 72 hours was not achieved. While mild improvement occurred, the patient began to experience painful attacks with associated rhinorrhea, unilateral ptosis, lacrimation, and conjunctival hyperemia OS leading to the diagnosis of Raeder Paratrigeminal Neuralgia. Of note, it is extremely rare that cranial nerve II is involved as manifested in this case with transient visual field loss and mild blur OS. After the initial attack, the patient later developed hemicrania continua; there is only one report in the literature of this occurrence. Treatment, management a. Treatment & response to treatment: This patient was co-managed with a neurologist for treatment. She experienced an adverse reaction to indomethacin but responded well to propranolol. 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The listener should gain knowledge of the work-up of a painful ophthalmoplegia as well as greater understanding of the trigeminal autonomic cephalgias.