Anamnesis

Identification: Female patient, 28 years old, presenting with orbital pain and acute visual loss for 5 days.

History of Present Illness: Ocular Symptoms: Pain: Location: Deep retro-orbital (left) Characteristic: Constant (6-8/10 VAS) Exacerbation with eye movements (9/10) Worsens at night Visual Deficit: Progressive low acuity (20/200) Central scotoma Dyschromatopsia for red Associated Symptoms: Uhthoff's phenomenon (worsens with increased body temperature) Phosphenes during eye movements Relevant History: Previous episode of limb paresthesias (2 years ago, not investigated)

Physical/Neurological Examination: Ophthalmological Evaluation (left eye): Pupil: Relative afferent pupillary defect (RAPD+) Fundoscopy: Edematous optic disc (papillitis) Peripapillary hemorrhages Visual field: Centrocecal scotoma Ocular Motricity Examination: Pain on forced abduction (Kennedy's sign) General Neurological Examination: No other focal deficits

Complementary Exams: Brain and Orbit MRI (with contrast): Increased signal and enhancement in the left optic nerve 3 periventricular lesions suggestive of demyelination Visual Evoked Potentials: Prolonged P100 latency (135ms) CSF: Positive IgG oligoclonal bands Increased IgG index

Report this case — e.g. suspected re-identification risk.