Serous Cystadenoma in 12 Years Old Girl Presenting with Severe Anemia.

A 12-year-old girl presented with anemia for eight months and abdominal pain for three months. She was prescribed iron supplements for eight months. She was admitted to our hospital with treatment-resistant anemia and abdominal pain. In physical examination she was found to have a mass in right lumbar area. An ultrasound and magnetic resonance imaging scans suggested a large cystic mass that fulfill the almost all of midline of the abdomen, pushing intra-abdominal organs laterally and superiorly. She had a successful excision of the tumor and the final pathology was serous cystadenoma. It is important to investigate the etiology of anemia in adolescent girls although the most common etiology is iron deficiency anemia. [ABSTRACT FROM AUTHOR]