胃に限局しIIa様の内視鏡像を呈したAL型アミロイドーシスの1例

Localized AL Amyloidosis of the Stomach with IIa-like Endoscopic Appearance, Report of a Case

要旨　患者は58歳，女性．検診の胃X線検査，近医の上部消化管内視鏡検査で胃体部小彎に異常を指摘され当センターを紹介受診．上部消化管内視鏡検査にて，胃体中部から下部小彎後壁寄りに限局する表面構造が顆粒状の4cm大の境界明瞭で，平坦な隆起性病変を認めた．生検および全身検索の結果，胃に限局したAL型アミロイドーシスと診断した．診断後6年経過した現在も生存中である．

　A 58-year-old woman was referred to our hospital because of an abnormality in the gastric corpus detected during mass screening. Radiological and endoscopic examinations of the gastrointestinal tract showed a localized elevated lesion covered with coarse mucosa on the lesser curvature in the corpus. Histological examination of the biopsy specimens revealed amyloid deposits of AL type in the mucosal layer. No other organs were affected by amyloidosis. Relying on these findings we diagnosed the disorder as AL amyloidosis localized to the stomach. There has been no obvious progression during the six years since the first medical examination.

Diseases, Osaka, Japan