早期胃癌的概念是日本内窥镜学会在1962年首先提出的,其定义是指癌肿浸润仅限于粘膜和粘膜下层。尽管这个定义有不足之处,例如未考虑癌肿浸润的范围、深度和有否淋巴结转移,但目前仍为大多数X线、内窥镜及胃肠病学医师所接受。本文的早期胃癌亦按此标准加以确定。为了提高对早期胃癌X线诊断的认识和检查技术水平,我们对近 The concept of early gastric cancer was first proposed by the Japanese Society of Endoscopy in 1962. Its definition was that cancer invasion was limited to the mucosa and submucosa. Although there are deficiencies in this definition, such as the extent, depth, and lymph node metastasis of cancer infiltration, it is still accepted by most X-ray, endoscopy, and gastroenterologists. The early gastric cancer in this article is also determined according to this standard. In order to raise awareness and check the technical level of X-ray diagnosis of early gastric cancer, we