(三)幽门梗阻:py roric obstruction (四)癌变: Canceration 四、诊断和鉴别诊断: Diagnosis and Differential diagnosis (一)诊断: Diagnosis 1临床表现 2X线钡餐检查: X-ray barium meal examination
（三）幽门梗阻：pyloric obstruction （四）癌变：Canceration 四、诊断和鉴别诊断： Diagnosis and Differential Diagnosis （一）诊断：Diagnosis 1.临床表现 2.X线钡餐检查：X-ray barium meal examination
