小腸腫瘍の内視鏡治療後サーベイランス

Surveillance Following Endoscopic Treatment of Small-bowel Tumors

要旨●近年カプセル内視鏡やバルーン内視鏡などの小腸内視鏡が広く普及したことにより，小腸腫瘍の診断が容易になった．しかし，小腸腫瘍に対する内視鏡治療の適応や治療後のサーベイランスについては，十分なコンセンサスはない．小腸腫瘍の種類は多岐にわたるが，消化管ポリポーシス合併の小腸病変は生涯にわたりサーベイランスが必要である．その際，小腸内視鏡のみならず，従来の体外式超音波検査，X線造影検査，造影CTなど他の診断法の特性を十分に理解したうえで適切なサーベイランスを行う必要がある．

　The recent widespread use of small-bowel endoscopies, such as capsule and balloon endoscopies, has facilitated small-bowel tumor diagnosis. However, consensus on the indications for endoscopic treatment and post-treatment surveillance of small-bowel tumors remains insufficient. there are several types of small-bowel tumors ; however, small-bowel lesions associated with gastrointestinal polyposis require lifelong surveillance. Appropriate surveillance should be based on a thorough understanding of the characteristics of not only small-bowel endoscopy but also other diagnostic modalities, including conventional external ultrasonography, radiography, and contrast-enhanced computed tomography.