Case Presentation: A 42-year-old man presented to his primary care clinic with five weeks of diarrhea with up to 8 loose, watery stools a day and cramping abdominal pain. On exam patient was well appearing, with normal vital signs, no abdominal tenderness or distention. Laboratory evaluation revealed a hemoglobin of 12.4 g/dL, albumin of 3.3 [...]