A CASE OF HYALINE-VASCULAR-TYPE CASTLEMAN'S DISEASE IN THE RETROPERITONEAL SPACE

Abstract

A 35-year-old woman was referred for examination of upper abdominal pain. Abdominal ultrasonography showed a low echoic tumor in the retro-peritoneal space. On admission, no particular abnormal findings were noted on biological studies of blood. Contrast-enhanced CT and abdominal MRI showed an enhanced, round-shaped tumor in the space between right kidney and vena cava. Abdominal angiography revealed a highly enhanced tumor fed by the artery branched from the right renal artery. Although MIBG-scintigram showed no hot lesion, surgical resection was performed for suspected retroperitoneal malignancy or accessory non-functional adrenal tumor. The resected 60 × 40 × 30 mm tumor proved histopathologically to be hyaline-vascular type Castleman's disease. The patient's postoperative course was uneventful, and she was discharged from the hospital on the 20^th postoperative day. Since Castleman's disease arising from retroperitoneal space is relatively rare, this case is presented together with a review of the literature.