1）X線像による壁の深達度診断

Radiological Diagnosis of the Depth of Invasion of Colon Cancer

要旨　大腸癌の深達度診断の要素には，①茎の有無，②大きさ，③中心陥凹の有無と形状，④病変の起始部の形状，⑤粘膜ひだの集中の有無⑥病変の形と結節状隆起の有無，⑦腸管の変形，などがある．病変の正面像と側面像の視点からみた深達度診断の指標について報告した．また，深達度診断を行うための4つの必要条件を挙げた．特に病変の側面像からみた深達度診断については，これまでのわが国での研究の歴史を説明し，解剖学的な“場”を考慮に入れた変形の診断学の必要性について述べた．

　The components of radiological diagnosis of the depth of invasion were as follows: 1) existence of the stalk, 2) size, 3) shape of a central depression, 4) shape of margin of the lesion , 5) existence of the convergence of mucosal folds, 6) overall deformity of the colon, and 7) deformity of the colonic wall itself on the margin of the lesion in the lateral view. We proposed diagnostic indicators of the depth of invasion on the frontal and lateral views. We mentioned 4 necessary conditions for diagnosis of the depth of invasion. Especially focused on the diagnosis of the depth of invasion on the lateral view, we gave an explanation of the history of research in Japan, and stated that the anatomical “field” should he considered for the diagnosis of deformity.