A 52-year-old man presented with right-sided upper and lower extremity weakness. He was previously diagnosed with HIV infection, though he is not currently on antiretroviral therapy. Brain MRIs demonstrated a T2-hyperintense, non-enhancing lesion within the left posterior frontal lobe, in the region of the motor cortex.
He subsequently underwent a brain biopsy.
![]() |
Kathryn Eschbacher, M.D. Resident, Anatomic Pathology/Neuropathology Mayo Clinic |
![]() |
Aditya Raghunathan, M.D., M.P.H. Consultant, Anatomic Pathology Mayo Clinic Assistant Professor of Laboratory Medicine and Pathology Mayo Clinic College of Medicine |