Case Presentation: A 77-year-old man presented with altered consciousness. His medical history included type 2 diabetes mellitus, hypertension, and complete atrioventricular block managed with a pacemaker. Three months earlier, corticosteroid therapy was initiated for acute lung injury of unknown etiology, with symptom improvement followed by dose tapering. He had no history of tuberculosis, mycobacterial infections, [...]

Case Presentation: An 83-year-old man with coronary artery bypass graft, atrial fibrillation, pacemaker, and chronic lymphocytic lymphoma (CLL), presented with a week of dizziness, generalized weakness, blurred vision, word-finding difficulties, and confusion. Dysmetria and peripheral vision loss on the right were notable. No fever. Labs were unremarkable except for mild anemia, lymphocytic leukocytosis, and neutropenia. [...]