Teh H S, Lin M B, Tan A S, Tan T Y, Chin C M
Department of Radiology, Changi General Hospital, 2 Simei Street 3, Singapore 529889.
Ann Acad Med Singap. 2000 Nov;29(6):773-6.
Castleman's disease (CD) is a rare lymphoid tumour usually found in the mediastinum. Extrathoracic sites are uncommon. Its radiological findings may be similar to other retroperitoneal tumours, making diagnosis difficult.
A 54-year-old female was found to have an incidental hypoechoic mass in the left posterior perinephric space on routine ultrasound. Abdominal computed tomography (CT) scan demonstrated an isodense mass which enhanced brightly with intravenous contrast. Angiogram confirmed a hypervascular mass.
The retroperitoneal mass was excised.
Histology revealed CD of hyaline-vascular type.
CD should be considered in the differential diagnosis of a retroperitoneal mass, which demonstrates homogeneous and intense enhancement.
卡斯特曼病（CD）是一种罕见的淋巴肿瘤，通常见于纵隔。胸外部位并不常见。其影像学表现可能与其他腹膜后肿瘤相似，导致诊断困难。
一名54岁女性在常规超声检查中发现左肾周后间隙有一个偶然发现的低回声肿块。腹部计算机断层扫描（CT）显示一个等密度肿块，静脉注射造影剂后明显强化。血管造影证实为高血运肿块。
切除腹膜后肿块。
组织学检查显示为透明血管型CD。
在鉴别诊断表现为均匀且明显强化的腹膜后肿块时应考虑CD。
