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近年来由于诊断技术的日益进步,早期胃癌的检出率逐年增多。鉴于早期胃癌的微小癌、多发癌和平坦型癌占60.2％,故强调术前细致的检查,如双重对比造影、低张双重对比造影及内窥镜等检查。本文仅就胃癌早期的X线诊断做介绍。一、早期胃癌的大体分型早期胃癌的大体分型已广泛应用于胃镜、X线诊断、临床外科与病理学领域。其分型如下: Ⅰ型(隆起型):癌肿明显高出周围正常粘膜(约2倍以上)或呈息肉状外观。Ⅱ型(浅表型):病灶比较平坦,不形成明显的隆起或凹陷,此型根据凸凹程度又分三个亚型。Ⅱ.型(浅表隆起型):较周围粘膜稍隆起,不超过粘膜厚度2倍;Ⅱ_b型(浅表平坦型):与周围粘膜几乎同高,
In recent years, with the advancement of diagnostic techniques, the detection rate of early gastric cancer has increased year by year. Given that 60.2% of small, multiple, and flat cancers of early-stage gastric cancer, it is emphasized that careful preoperative examinations, such as double-contrast angiography, double-contrast-enhanced contrast, and endoscopy, should be performed. This article only introduces the early X-ray diagnosis of gastric cancer. First, the general classification of early gastric cancer The general classification of early gastric cancer has been widely used in gastroscopy, X-ray diagnosis, clinical surgery and pathology. Its classification is as follows: Type I (uplift type): Cancer is significantly higher than the surrounding normal mucosa (about 2 times more) or a polypoid appearance. Type II (superficial): The lesions are relatively flat and do not form prominent bulges or depressions. This type is subdivided into three subtypes depending on the degree of concavity and convexity. Type II (superficial uplift type): Slightly raised above the surrounding mucosa, no more than 2 times the thickness of the mucous membrane; type II_b (superficial flat type): almost the same height as the surrounding mucous membranes,