例1:女性,47岁。因进食后上腹饱胀不适感1月,发现上腹部包块1周入院。无口服避孕药史,发病期间无厌油、消瘦等症状。体检:一般情况好。皮肤、巩膜无黄染。心、肺无异常。于上腹部扪及一约12cm×8cm大小肿块,边界清楚,质地中等偏硬,无触痛。肝功能、凝血机制等均正常,甲胎蛋白(A Example 1: Female, 47 years old. Abdominal sensation due to abdominal fullness after eating January, found the upper abdominal mass 1 week admission. No history of oral contraceptives, no greasy oil during the onset, weight loss and other symptoms. Physical examination: the general situation is good. Skin, sclera without yellow dye. Heart, lungs without exception. Palpable in the upper abdomen about a 12cm × 8cm size of the tumor, the border is clear, the texture is medium and hard, no tenderness. Liver function, coagulation mechanisms are normal, alpha fetoprotein (A