患者男,65岁。主因腹胀2个月加重1个月入院。患者入院前2个月无明显诱因出现腹胀,饮食减少,无腹痛、恶心、呕吐,二便正常,未曾治疗。近1个月来腹胀逐渐加重,腹部膨隆明显,体重减轻,双下肢水肿,来院就诊。超声所见:于腹腔腹膜后可及一巨大实性肿物,边界欠清,形态不规则,其肿物范 Male patient, 65 years old. Mainly due to bloating 2 months to increase 1 month admission. 2 months before admission, patients with no obvious incentive to bloating, diet, no abdominal pain, nausea, vomiting, second normal, untreated. Abdominal distension gradually increased in the past month, abdominal bulging obvious, weight loss, lower extremity edema, to the hospital. Ultrasound findings: in the peritoneal retroperitoneal and a huge solid tumor, the border is not clear, irregular shape, the tumor Fan