A Case of Castleman's Disease Arising from the Greater Omentum

Castleman’s disease is a rare benign lymphoproliferative disorder of unknown etiology. It is characterized by giant lymph node hyperplasia and a nonmalignant course. Castleman’s disease usually involves the mediastinum, with about 70% of cases occurring in the thorax. However, the disease can also occur in an extrathoracic site where lymphoid tissue is present such as the neck, axilla, shoulder area, mesentery, pelvis, pancreas, and retroperitoneum (1). The presence of Castleman’s disease in the abdomen or pelvis is rare, and extremely rare at the omentum. To the best of our knowledge, only one case was reported in 1990 (2). We report one case of omental Castleman’s disease in a 69-yearold female patient, imaged by three cross-sectional modalities: US, CT, and MRI with gadolinium.