文献詳細
文献概要
今月の主題 知っておくべき胃疾患の分類 主題
胃癌─病理学的分類:日本における実践的な分類
著者: 九嶋亮治1
所属機関: 1滋賀医科大学医学部臨床検査医学講座(附属病院病理診断科)
ページ範囲:P.15 - P.26
文献購入ページに移動要旨●胃腫瘍は胃癌取扱い規約やWHO分類に従って組織形態学的に分類され,組織発生の観点から分化型と未分化型などに大別されてきた(Lauren分類,菅野・中村分類).これらを踏まえたうえで,初期〜早期病変を多く経験し,病理像と画像所見との詳細な対比を重視するわが国では,主に分化型癌に対して,核異型に注目する異型度分類,細胞分化に注目する形質発現分類(胃型,腸型,混合型など)が注目されてきた.また,手つなぎ型,胃底腺型,胃底腺粘膜型など独特の形容がなされている腫瘍(癌)や腺腫との関連・鑑別がよくわからない腫瘍まで多種多様なものが存在する.拡大内視鏡診断が発達し,これらの分類の重要性が増しているが,同じ腫瘍に対してもいろいろな名前で呼ばれているのが実情である.本稿では,診断者の流儀や日欧米間の概念の異同がリンクできるように“胃癌の実践的分類”を解説したい.
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