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患者女性,29岁。1年前无诱因出现排便习惯改变,表现为大便次数增多、大便变细,为少量黄色稀便,左下腹持续性隐痛。查体:左下腹可触及一条索样包块,质硬,边缘光滑,压痛明显。增强CT:乙状结肠管壁增厚,有一大小7 cm×5 cm×5 cm占位,考虑间质瘤(恶性可能)。MRI:乙状结肠异常混杂信号块影。消化系统肿瘤标记物:鳞状细胞癌相关抗原2.73 IU/ml(参考值0.011~2.5 IU/ml),非小细胞肺
Patient female, 29 years old. 1 year ago there was no incentive to change bowel habits, manifested as stool frequency increased, stool thinner, a small amount of yellow loose stool, persistent pain in the left lower abdomen. Physical examination: left lower abdomen can touch a cable sample mass, hard, smooth edges, tenderness significantly. Enhanced CT: sigmoid colon wall thickening, a size of 7 cm × 5 cm × 5 cm placeholder, consider stromal tumors (malignant possible). MRI: Abnormal sigmoid mixed signal block shadow. Digestive system tumor markers: squamous cell carcinoma associated antigen 2.73 IU / ml (reference value 0.011 ~ 2.5 IU / ml), non-small cell lung