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要旨●胃底腺型腺癌11例17病変の内視鏡所見を検討した.白色光観察の内視鏡的特徴であるSMT様の腫瘍辺縁は53%,褪色調は94%,拡張した樹枝状血管は65%,背景粘膜に萎縮なしは100%で認め,既報と同様であった.NBI拡大観察の内視鏡的特徴である明瞭なDLなしは80%,窩間部の開大は100%,SECの蛇行・拡張(irregularityに乏しい微小血管)は73%で認め,既報と同様であった.U領域で隆起型が,M領域では陥凹型が多く,局在と肉眼型に関連がある可能性が示唆された.同一例で多発病変は類似した所見を呈し,主病変と同様の所見や小さな褪色陥凹を注意深く探すことで,多発病変の指摘が可能となると考えられた.
This study aimed to investigate the endoscopic findings of 17 lesions in 11 cases of gastric adenocarcinoma of the fundic gland type. White light images revealed the prevalence of submucosal tomor-like appearance(53%), pale color(94%), dilated dendritic vessels(65%), and no atrophy in the background mucosa(100%), which were similar to a previous report. The prevalence of unclear demarcation line(80%), expansion of the intervening part between crypt openings(100%), and dilation and tortuosity of the subepithelial capillary(slightly irregular microvessels, 73%)in magnifying narrow-band imaging were similar between our study and a previous report. The elevated type was likely seen in the upper third of the stomach, while the depressed type was in the middle third of the stomach, suggesting an association between the lesion location and the macroscopic type. Multiple lesions showed similar appearance in the same patient ; thus, paying attention to the similar finding to the main lesion would help detect multiple lesions.
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