胃类癌(Gastriccarcinoidtumor)过去由于发病率低,长期未引起人们的重视。近年来,随着内窥镜的广泛开展以及银染色、免疫学标记和电镜等新诊断方法的使用,临床胃类癌病例报道日益增多。其特殊的生物学行为,更成为研究热点之一。一、胃类癌发病情况及分类胃类癌属前肠类癌,占消 Gastric cancer (Gastriccarcinoid tumor) in the past because of the low incidence of long-term has not attracted the attention of people. In recent years, with the extensive development of endoscopes and the use of new diagnostic methods such as silver staining, immunological markers and electron microscopy, there are increasing reports of clinical cases of gastric cancer. Its special biological behavior has become one of the hot spots. First, the incidence of gastric cancer and classification Gastric cancer is a type of foregut carcinoid, accounting for consumer