Fataar S, Morton P, Schulman A
Clin Radiol. 1981 Nov;32(6):623-8. doi: 10.1016/s0009-9260(81)80324-8.
Congenital arteriovenous malformations of bowel occurring as solitary or multiple lesions may cause obscure gastrointestinal bleeding with negative radiological and endoscopic studies. These malformations may be missed at laparotomy and selective visceral angiography is essential for localisation and to assess is extent of the lesions. An immediate post-resection radiograph with barium injection into the arteries is recommended to assess the completeness of the resection before abdominal closure. There is a need, when discussing vascular malformations of the bowel, to distinguish the acquired degenerative colonic lesions from the congenital arteriovenous malformations which are more common in the small bowel.
肠道先天性动静脉畸形可表现为单发或多发病变，可能导致不明原因的胃肠道出血，而放射学和内镜检查结果均为阴性。这些畸形在剖腹手术时可能被漏诊，选择性内脏血管造影对于定位和评估病变范围至关重要。建议在腹部闭合前立即进行动脉内注入钡剂的切除后X线片检查，以评估切除的完整性。在讨论肠道血管畸形时，有必要将后天性退行性结肠病变与先天性动静脉畸形区分开来，后者在小肠中更为常见。
