患者女，71岁。以左腹部包块进行性增大半年余入院。半年前，出现饭后饱胀感，同时于左上腹可触及一馒头大小包块．未加注意。近来包块进行增大，饱胀感加重，无腹痛，叹气及反酸等症状。查体：左腹部明显膨隆，可触及约18cm×10cm×15cm大小包块，其表面光滑，质硬、固定，无 Female patient, 71 years old. The left abdominal mass was progressively increased for more than half a year. Six months ago, there was a feeling of fullness after meals, and a small size of a small head was touched on the left upper quadrant. Not paying attention. Recently, masses have increased, feelings of fullness have increased, no abdominal pain, sighs, and acid reflux have been observed. Physical examination: The left abdomen is obviously bulging and can reach a mass of about 18cm x 10cm x 15cm. Its surface is smooth, hard and fixed,