A case of castleman's disease of the greater omentum treated by laparoscopic resection

Abstract

A 59-year-old female was admitted to our hospital for diabetes where a CT scan indicated an abdominal tumor. Enhanced CT showed that the tumor was oval-shaped with a smooth surface, 4.5 cm in diameter located on the outside of the gastric antrum wall, and presented a strongly enhanced central region. MRI showed low signal intensity on the T1 and high signal intensity of the central region on the T2-weighted images. The border between the gastric wall and the tumor was unclear on endoscopic ultrasound. Laparoscopic resection was successfully performed. Intraoperative findings showed that the tumor was derived from the greater omentum. Pathologic examination revealed the tumor to be the hyaline vascular type of Castleman's disease.