A man in his 30s presented with abdominal pain associated with unintentional weight loss for 6 months. The patient had a history of hyperlipidemia. Results of examination revealed a palpable mass of about 15 cm in the left paraumbilical region. The patient had a normal right testis but a missing left testis. Results of a computed tomography scan of the thorax, abdomen, and pelvis revealed large intraperitoneal and retroperitoneal masses. The intraperitoneal heterogenous mass was 20 × 15 × 11 cm, with linear calcifications (Figure 1). There was a right moderate hydronephrosis. The retroperitoneal mass was homogeneous, with associated lymphadenopathy encircling the aorta, inferior mesenteric artery, and both renal arteries. A large left supraclavicular lymph node and left inguinal lymph node were also detected. There was no metastasis identified elsewhere. Serum lactate dehydrogenase was elevated at 1358 U/L (to convert to microkatals per liter, multiply by 0.0167), β human chorionic gonadotrophin was elevated at 1485 mIU/mL (to convert to international units per liter, multiply by 1.0), and α fetoprotein levels were normal.

一名30多岁的男子出现腹部疼痛，并伴有6个月的意外体重减轻。该患者有高脂血症病史。检查结果表明，在脐旁左区可触及的肿块约为15厘米。该患者右睾丸正常，但左睾丸缺失。胸部，腹部和骨盆的计算机断层扫描结果表明，腹膜内和腹膜后的肿块很大。腹膜内异物为20×15×11 cm，钙化呈线性（图1）。右中度肾盂积水。腹膜后肿块是均质的，伴有相关的淋巴结病环绕主动脉，肠系膜下动脉和两条肾动脉。还检测到大的左锁骨上淋巴结和左腹股沟淋巴结。在其他地方未发现转移。血清乳酸脱氢酶升高到1358 U / L（每升转化为微卡，乘以0.0167），β人绒毛膜促性腺激素升高到1485 mIU / mL（转化成每升国际单位，乘以1.0），α胎儿蛋白水平正常。