病例 男,56岁。该患以上腹无痛性包块渐大六年为主诉住院。病人六年前在健康体检时经B超、CT检查发现腹部一包块约5.0cm,,以后包块逐渐增大,但无明显不适。入院检查,一般状态良好,心肺未见异常,腹平坦,右上腹略膨隆,肋缘下可及一约10cm×8cm,质中等,表面光滑,边界清,无压痛之包块。住院前CT报告:腹膜后至肝左叶cm:12×11×13不规则软组织肿块,密度不均匀,CT值7μn～ Case Male, 56 years old. The painless mass in the upper abdomen gradually became chiefly hospitalized for six years. Six years ago, when the patient was examined by B-ultrasonography and CT examination, it was found that the mass of the abdomen was about 5.0cm. Afterwards, the mass of the mass was gradually increased but there was no obvious discomfort. Admission examination, generally in good condition, no abnormalities in heart and lung, flat belly, slightly bulging right upper abdomen, about 10cm × 8cm under the costal margin, medium quality, smooth surface, clear boundary, no tender mass. CT report before hospitalization: retroperitoneal to left hepatic lobe cm: 12×11×13 irregular soft tissue mass, uneven density, CT value 7μn～