Arab Board Radiology Final Written Practice Questions - Arab Board Diagnostic Radiology Final Written Exam (ABHS) Exam

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A 28-year-old female presents with subacute visual loss in the right eye followed by lower extremity paresthesias. Brain MRI reveals multiple ovoid T2/FLAIR hyperintense lesions oriented perpendicularly along the subependymal venules of the corpus callosum and callososeptal interface. What are these characteristic imaging findings called, and what do they represent?

Dawson fingers; Perivenular demyelinating plaques in multiple sclerosis Radial bands; Cortical dysplasia in tuberous sclerosis Virchow-Robin spaces; Prominent perivascular spaces in hypertensive microangiopathy Leopard spots; Metachromatic leukodystrophy

Correct Answer:

Dawson fingers; Perivenular demyelinating plaques in multiple sclerosis

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