Question 2132
A patient with untreated HIV (human immunodeficiency virus) infection in a developed country presents with altered mental status. Neuroimaging reveals multiple brain lesions associated with edema, contrast enhancement, and mass effect. What are the two most likely possibilities in the differential diagnosis?
Question 2381
A 25-year-old man with history of polysubstance use disorder presents with confusion and is assessed with the MRI shown. What is the most likely diagnosis?
Question 2593
A 14-year-old with acute lymphoblastic leukemia presents with acute right hemiplegia and is evaluated with brain MRI. What is the most likely diagnosis?