胃贲门区是癌肿好发部位,由于贲门局部解剖毗邻关系较复杂、结构特殊等原因,早期贲门癌(T1期)诊断较难。对于中晚期贲门癌(癌浸润深达肌层及肌层以下,即进展期癌,T2~4期),虽然发现病灶不难,但是临床在确定合理的治疗方案、减少不必要的手术探查方面,则要求准确的术前分期诊断。 Gastric cardia area is a predilection site of cancer. Due to the complicated anatomy of the cardia and the special structure, early diagnosis of cardia cancer (T1 phase) is more difficult. For the advanced cardia cancer (cancer invasion deep muscularis and muscularis, the progress of cancer, T2 ~ 4), although the lesion is not difficult to find, but in clinical to determine a reasonable treatment options to reduce unnecessary surgical exploration , Requires accurate preoperative staging diagnosis.