Tc-99m red blood cell scintigraphic detection of CMV-induced small bowel hemorrhage.

A 4-month-old female child, recently diagnosed with parentally-acquired HIV complicated by moderate immunosuppression and pneumocystis carinii pneumonia (PCP), presented with hematochezia. A Tc-99m bleeding study was performed and demonstrated a site of brisk bleeding in the distal ileum. The patient was taken to the operating room and resection of the distal ileum revealed the presence of cytomegalovirus (CMV) enteritis. In immunocompromised children presenting with gastrointestinal (GI) hemorrhage, CMV enteritis should be considered.