ZIAUDDIN UNIVERSITY PBL-8 Module Name: Central Nervous System Date of PBL: MBBS 3rd year (Batch-XXIV) I can’t eat, write and speak properly A 28-year-old lady came to the family physician with sudden loss of vision in her right eye last nightthat resolved within a few hours. She also complaint of tremors in her right hand while writing or eating, weakness in her legs, urinary incontinence, and difficulty in speaking for a month. She stated that 3 years ago she had an episode of “double vision” that lasted few hours and resolved on its own. Family history revealed her mother had similar symptoms. General Physical Examination: An adult female of average height and built, well oriented in time, place and person. Vitals: B.P: 110/70 mmHg Temp: 98oF Pulse: 80 beats/min R/R: 18 breaths/min Pallor: Not present Jaundice: Not present Cyanosis: Not present Dehydration: Not present Clubbing: Not present Pedal Edema: Not Present Lymph nodes: Not palpable Thyroid: Not enlarged Systemic examination: HEENT: Non-significant Respiratory System: Normal vesicular breathing. Cardiovascular system: S1, S2 audible with no added sounds. Abdomen: Abdomen was soft and non-tender with no visceromegaly. No sign of shifting dullness. Bowel sounds audible. CNS: CNS examination revealed: Right eye:Limited adduction; Indirect light reflex: +ve; Direct light reflex: -ve Left eye:Abducting nystagmus. Motor examination of lower extremities showed hyperreflexia in both legs with spastic tone Laboratory findings: CBC Hb: 13.2 mg/dl RBCs: 4.5 x 1012 / ml WBCs: 9 x 109 /L Platelets: 250 x 10 9 /L Lumbar puncture was performed and CSF was sent for D/R and C/S. CSF Findings: CSF revealed; Oligoclonal Immunoglobulin Bands, IgG index: 0.89 Protein: 50 mg/dl, WBC count: 5 cells / mm3 MRI: MRI brain (without contrast) showing classic demyelination (asymmetric hyperintense lesions) Management: Inj. Interferon beta-1b 30 mcg IM qwk Inj.Natalizumab 300mg infusion q×4wk Inj. Methylprednisone 500mg IV for 5 days Symptomatic treatment was given for neurogenic bladder, spasticity, and pain. TASK: Discuss the concepts of basic sciences related to the case (Anatomy, physiology, biochemistry, pathology, pharmacology and CHS).