Inflammatory myofibroblastic tumor of the spleen in children

Inflammatory myofibroblastic tumor (IMT) is a rare benign neoplasm, which mainly involves lungs of the children. Extra-pulmonary locations are manifested mostly in viscera, but localization in the spleen is extremely rare with only few case reports in literature. Although it is commonly seen in children, the numbers of childhood cases are limited. We described a case of IMT of the spleen in a 16-year-old boy who visited our hospital with worsening fatigue symptoms and mild upper abdominal discomfort. The abdominal ultrasound was performed indicating a low echoic mass located in the spleen and measuring 18x10x10 cm. An abdominal CT scan was performed and demonstrated a large low-density hypovascular mass. Splenectomy was indicated and performed. Intra-operative and postoperative courses were uneventful.