RETROPERITONEAL CASTLEMANS-DISEASE OF THE HYALINE VASCULAR TYPE PRESENTING ARBORIZING CALCIFICATION

Castleman's disease (CD) usually manifests as a solitary mediastinal t umor and only rarely as an isolated retroperitoneal mass. In the latte r instances it is difficult to distinguish radiographically from other retroperitoneal masses. We report a 22-year-old female patient with r etroperitoneal CD of the hyaline vascular type presenting with arboriz ing calcification. This characteristic calcification pattern is consid ered unique to CD, and is useful in diagnosis when present.