Case Presentation: A 60-year-old female with a history of Castleman disease presented outpatient with painful progressive “stocking-and-glove” polyneuropathy. She was referred for EMG, which demonstrated significant sensorimotor neuropathy. Notable lab findings months prior included new subclinical hypothyroidism, normocytic anemia, and thrombocytosis. Given her presentation, she was admitted for expedited evaluation. Upon arrival, neurology and hematology [...]

Case Presentation: A 61-year-old man with a history of hypertension and type 2 diabetes mellitus developed tingling, numbness, and burning pain in his feet and calves. He was prescribed gabapentin for presumed diabetic neuropathy but had no relief. Five years later, on a routine MRI of the spine for chronic low back pain, multiple sclerotic [...]