下血を繰り返した空腸動静脈形成異常の1例―術中内視鏡所見と微細血管構築所見を中心として―

DOI

書誌事項

タイトル別名
  • A CASE OF ARTERIOVENOUS MALFORMATION OF THE JEJUNUM MANIFESTED BY REPEATED HEMATOCHEZIA.

この論文をさがす

抄録

A 72-year-old man visited us due to repeated episodes of passage of tarry stools associated with anemia. Examination of the upper and lower gastrointestinal tracts revealed no abnormalities. However, the findings of the superior mesenteric angiography indicated abnormal vascularization, high density areas and premature flowing out in the arterial phase of the jejunal arteries. A diagnosis of arteriovenous malformation was thus made, and surgery was performed. Endoscopy performed during the operation revealed a small eminence looking like a submucosal tumor and capillary dilation, confirming that these were the bleeding sites. The microvascular structure of the resected intestine consisted of proliferation of thick, twisting, serpiginous blood vessels and dilation of the surrounding capillaries, with growth of dilated blood vessels to near the mucosal surface. This area was considered to be the major site of bleeding.

収録刊行物

詳細情報 詳細情報について

問題の指摘

ページトップへ