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要旨●表層型胃悪性リンパ腫,特に胃MALTリンパ腫の内視鏡所見は非常に多彩であり,内視鏡診断が困難な疾患のひとつである.本邦から普及したNBI併用拡大観察によって腺構造の消失傾向と特徴的に分岐した異常血管を観察することは,胃MALTリンパ腫の診断能を飛躍的に向上させる可能性がある.さらにはここ数年出現した超拡大内視鏡によって胃MALTリンパ腫の診断学はさらなるステージに突入する可能性を秘めている.
Endoscopic findings of superficial-type malignant lymphoma of the stomach, especially MALT (mucosa-associated lymphoid tissue)lymphoma of the stomach, vary. This is one of the diseases that are difficult to endoscopically diagnose. Examination of the disappearance of the glandular structure and characteristically branched abnormal blood vessels using magnifying NBI (narrow band imaging), which has been routinely used in Japan, may markedly improve the diagnostic capacity for MALT lymphoma of the stomach. In addition, magnifying endoscopy, which appeared during the past few years, may advance diagnostics of MALT lymphoma of the stomach to the next stage.
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