Case Presentation: A 74-year-old man with history of diffuse B cell lymphoma presented with 2 day history of fever, urinary frequency and dysuria, associated with poor oral intake, weakness and lightheadedness. He had completed the 6th and final cycle of chemotherapy with Rituximab, Cyclophosphamide, Doxorubicin, Vincristine and Prednisone, about 8 days prior to presentation. Vital [...]