A 33 year old male presented with homonymous hemianopia. He also has ataxia and personality changes. Characteristic inclusions are seen in oligodendrocytes. What is the MOST probable diagnosis in this patient?
Correct Answer: Progressive multifocal leukoencephalopathy
Description: Progressive multifocal leukoencephalopathy(PML) is characterized pathologically by multifocal areas of demyelination of varying size distributed throughout the brain but sparing the spinal cord and optic nerves. Characteristic microscopic feature: 1. Oligodendrocytes have enlarged, densely staining nuclei that contain viral inclusions formed by crystalline arrays of JC virus (JCV) paicles. 2. Astrocytes are enlarged and contain hyperchromatic, deformed, and bizarre nuclei and frequent mitotic figures. Clinical presentation: Visual deficits (45%), typically a homonymous hemianopia Mental impairment (38%) (dementia, confusion, personality change) Weakness, including hemi- or monoparesis Ataxia Ref: Roos K.L., Tyler K.L. (2012). Chapter 381. Meningitis, Encephalitis, Brain Abscess, and Empyema. In D.L. Longo, A.S. Fauci, D.L. Kasper, S.L. Hauser, J.L. Jameson, J. Loscalzo (Eds), Harrison's Principles of Internal Medicine, 18e.
Category:
Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now