Lim S K, Sampson C C, Warner O G
J Natl Med Assoc. 1981 May;73(5):413-7.
Two separate primary carcinomas occurring simultaneously in the esophagus and stomach are uncommon. The authors report three cases of this entity, squamous cell carcinoma of the osophagus and adenocarcinoma of the stomach, one of which is classified as a collision carcinoma of the stomach. Because of the rarity of collision tumors of this histologic variety, the world literature was reviewed. Diagnostic features and the relative prognosis of dual primary carcinomas are discussed.
食管和胃同时发生两个独立的原发性癌并不常见。作者报告了3例这种情况，即食管鳞状细胞癌和胃腺癌，其中1例被归类为胃碰撞癌。由于这种组织学类型的碰撞瘤罕见，因此对世界文献进行了回顾。讨论了双原发性癌的诊断特征和相对预后。
