A Rare Case of Pembrolizumab Associated Encephalopathy.

We present a unique case of a 55-year-old man with confusion thought to be due to pembrolizumab which he was receiving for renal cell carcinoma. His workup for other possible etiologies for encephalopathy was negative. He was treated with high dose intravenous methylprednisolone followed by prednisone taper and intravenous immunoglobulin with gradual improvement in his mentation.

Mycobacterium mucogenicum Hand Infection in an Intravenous Drug Abuser.

Mycobacterium mucogenicum is a rapidly growing mycobacterium found ubiquitously in water sources. It has been reported to cause widespread infections with infection entry from wound or central venous catheters especially in immunocompromised patients. Diagnosis is made from blood cultures which may take at least a week. Management includes removal of the source or drainage of wound infections and combination antimicrobial therapy.