Castleman's disease in the pelvic cavity

Although Castleman's disease may occur in any lymph node of the body, it is the most commonly found in the thoracic cavity. Castleman's disease rarely occurs in the pelvic cavity and only 18 such cases have been reported. We report a case of pelvic Castleman's disease. A 57-year-old man was referred for evaluation of a pelvic tumor. The tumor was surgically resected and the histopathological diagnosis of the resected tissue was hyaline vascular type of Castleman's disease. No evidence of disease was detected five months post-operatively.