\n\n
注:图示为全球各地区食管癌的年龄标准化发病率
\n\n鳞癌主要由食物摩擦、刺激等引起,所以,承担食物运输功能的上端和中段食管是“重灾区”[2]。
\n\n腺癌多源于胃食管反流病(也称“反流性食管炎”),也就是胃液、胆汁等液体反流至食管,使通常存在于胃黏膜的“柱状上皮”入侵食管“原住民”鳞状上皮的领地。胃和食管交界处,是其入侵的“前沿阵地”,因而,腺癌多发生于远端食管(腹段食管)。
\n\n鳞癌:吸烟、饮酒是最重要发病因素
\n\t研究证实,吸烟者患食管鳞癌的风险是未吸烟者的 9 倍[4]。
\n\n但在中国,吸烟对食管癌风险的“贡献”较少[5][6][7],与“吃”相关的因素更为重要,比如饮酒、常吃烫食、腌制蔬菜吃得多、维生素摄入不足等[8]。这些因素可以造成食管黏膜反复损伤,在不断修复创面的过程中,容易发生鳞状上皮的不典型增生,最终发展成癌症。
\n\n另外,人乳头瘤病毒 (human papilloma virus, HPV) 在中国食管鳞癌患者中的平均感染率为 40%,以 HPV-16 多见[9],也是食管鳞癌的一个危险因素[10]。
\n\n\n\n食管腺癌的诱因主要有:肥胖、胃食管反流病及其导致的 Barrett 食管。胃酸或胆汁反流进入食管,可造成鳞状上皮慢慢变成不正常的柱状上皮,最终导致腺癌。
\n\n有研究表明,存在胃食管反流病的人,患食管腺癌的风险是一般人群的 3.48 倍[11]。
\n\n食管鳞癌和腺癌的发生过程,如下图所示:
\n\n\n\n
\n\n\n',recruit_treatment:[],url:e,thanks:[],diseases:[{name:"食管癌"}],releasetime:"2021-09-17",op_sole:K.visible=0,abs:"腺癌的起因多源于胃食管反流病(也成反流性食管炎);鳞癌主要由食物摩擦、刺激等引起。",size:0,op_doctors:[{drid:10746,hpid:0,icon:j,position:N,hospital:h,text:S,doctor_clickable:1,hospital_clickable:0,name:"沈琳",weight:0,prefix:e,sole:0,department:g,follow:0,doctor_type:0,hprank:f}],sole_recruit:{hospital:[],disease:[],area:[],treatment:[],drug:[],target:e,purpose:e,count:e,state:0},op_doctor:{drid:10746,hpid:0,icon:j,position:N,hospital:h,text:S,doctor_clickable:1,hospital_clickable:0,name:"沈琳",weight:0,prefix:e,sole:0,department:g,follow:0,doctor_type:0,hprank:f},op_hospital:{name:e,hpid:0,icon:e,info:e,prefix:e,clickable:0,hprank:e},tid:6,ref:[],op_author:{op_hospital:{name:e,hpid:0,icon:e,info:e,prefix:e,clickable:0,hprank:e},op_doctor:[{drid:11797,hpid:0,icon:e,position:e,hospital:h,text:J,doctor_clickable:0,hospital_clickable:0,name:"李爽",weight:0,prefix:e,sole:0,department:g,follow:0,doctor_type:1,hprank:f}]},info_type:0,source:e,docid:x,op_class:0,summary_url:e,ctype:1,duration:0,op_keyword:[],image:e,title:"食管鳞癌和腺癌有什么不同?",op_copyright:e,ref_info:["Arnold, M., Soerjomataram, I., Ferlay, J. 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M. et al.Diet habits, alcohol drinking, tobacco smoking, green tea drinking, and the risk of esophageal squamous cell carcinoma in the Chinese population[J].European journal of gastroenterology & hepatology 19, 171-176, doi:10.1097/MEG.0b013e32800ff77a (2007).","Tran, G. D. et al.Prospective study of risk factors for esophageal and gastric cancers in the Linxian general population trial cohort in China[J].International journal of cancer 113, 456-463, doi:10.1002/ijc.20616 (2005).","Kamangar F, Chow WH, Abnet CC, et al.Environmental causes of esophageal cancer[J].Gastroenterol Clin North Am, 2009, 38 (1);27-57, vii. doi: 10.1016/j.gtc.2009.01.004.","Petrick, J. 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