A 25-year-old woman presents with 2 days of painful vision loss in her right eye with desaturated color perception, especially red objects. Vital signs: BP 118/76, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Examination reveals right afferent pupillary defect and normal extraocular movements. MRI brain shows T2 hyperintense lesion in the right optic nerve. She denies recent fever or systemic symptoms. Which of the following is the most likely diagnosis?
- A)Progressive multifocal leukoencephalopathy
- B)Psychogenic nonepileptic seizure
- C)Myasthenia gravis
- D)Optic neuritisGABARITO
- E)Internuclear ophthalmoplegia from medial longitudinal fasciculus lesion
Explicação
Painful monocular vision loss with reduced color saturation and an afferent pupillary defect is classic for optic neuritis. This is a common initial manifestation of multiple sclerosis and reflects inflammatory demyelination of the optic nerve. Ver explicação completa e trilha adaptativa →