Abstract
A case of splenic peliosis growing like a solid tumor that was difficult to distinguish from a submucosal tumor of the stomach is reported. An asymptomatic 63-year-old woman was found to have an abdominal tumor on CT examination while she was being investigated for other disease. On CT, there was solid tumor between the stomach and spleen. It looked like a solid tumor arising from the stomach. Upper gastrointestinal endoscopic examination showed that the tumor was covered with normal gastric mucosa. Endoscopic ultrasound examination also showed similar findings. The preoperative diagnosis was a submucosal tumor of the stomach. Laparotomy demonstrated that the tumorous lesion was arising from the spleen, and splenectomy was performed. The pathological diagnosis of the resected specimen was splenic peliosis.
