例１男，２３岁。上腹部胀痛不适，全身乏力伴消瘦半年，恶心，呕吐胃内容物１周，Ｂ超检查发现肝脏占位病变，大小约１０ｃｍ×１２ｃｍ，呈低密度回声实性占位，边界清楚，内部回声尚均匀。剖腹探查见肿瘤位于中肝叶，呈灰白色，质稍硬，肿瘤与胆囊有粘连，行中肝叶切除... Example 1 Male, 23 years old. Abdominal pain discomfort, generalized fatigue with weight loss for half a year, nausea, vomiting stomach contents for 1 week, B-ultrasound examination revealed liver lesions, size about 10cm x 12cm, low-density echogenic solid mass, clear boundary, internal echo Evenly. The exploratory laparotomy revealed that the tumor was located in the middle lobe of the liver and it was grayish white and slightly harder. The tumor and gallbladder had adhesions, and the liver was removed...