3-PHASE TC-99M LABELED RBC SCINTIGRAPHY OF A SPLENIC HEMANGIOMA

A 46-year-old man presented with right upper quadrant pain with a clin ical suspicion of cholelithiasis and was referred for an abdominal ult rasound (US). On US evaluation, the liver and gallbladder were normal. Incidentally noted a homogeneous, well demarcated, hyperechoic, 5-cm mass in the inferior portion of the spleen. A subsequent Tc-99m labele d RBC scan showed a 5-cm photopenic area in the inferior portion of th e spleen on perfusion and early blood pool images. Subsequent filling in on delayed images with slightly increased uptake relative to surrou nding splenic tissue was seen on the final images (85 min). Splenic he mangiomas are rare neoplasms, although they still represent the most c ommon primary neoplasm of the spleen. The incidence of splenic hemangi omas ranges from 0.03-14% in autopsy studies.