早期胃癌診断の基本―X線の立場から

Basis of the Diagnosis of Early Gastric Cancer-From the Standpoint of Roentgenography

要旨　胃癌のX線像と内視鏡像は，病理像との対比から得られたものであり，基本的には異なるものではない．胃癌の診断はX線検査であれ内視鏡検査であれ，その悪性所見を捉えればよい．筆者の成績では微小胃癌に対するX線検査と内視鏡検査の診断能は同等であった．胃癌の基本的X線所見と小さな癌の拾い上げ診断，更に微小胃癌でみられる悪性像（小区1個単位の段差のある細りが隣接する小区間で融合し形成される棘状の不整形陥凹）について症例を提示し述べた．胃癌の診断においてX線検査と内視鏡検査は各々の欠点を補完する関係にあり，最近衰退傾向にあるX線検査の重要性について喚起した．

　The diagnosis of gastric cancer by roentgenography or endoscopy has been established through comparing their findings with the pathological figure. No essential difference lies between these two methods. To grasp the findings suggestive of malignancy is what matters. In our results, the diagnostic capacity of both roentgenography and endoscopy is equal. From the standpoint of roentgenography, we discussed the diagnosis of small cancers, and some findings suggesting malignancy seen in minute gastric cancers (an irregular depression with spicular margin, which is formed by a fusion of contiguous units depressed and thinned) . In the diagnosis of gastric cancer, roentgenography and endoscopy are compensatory. We tried to reemphasize the importance of roentgenography, which tends to overlooked recently.