大肠动静脉畸形

定义

大肠血管畸形，由部分原始血管丛的局部发育不良引起，包括没有毛细血管介入的异常动静脉交通。它们大小不一，从由多条血管供血的巨大病变到在动脉造影、外科手术或尸检中难以识别的小病变，但相对大于血管发育不良。

Vascular malformations of large intestine that result from a localised maldevelopment of part of the primitive vascular plexus and consist of abnormal arteriovenous communications without intervening capillaries. They vary in size, ranging from massive lesions that are fed by multiple vessels to lesions so small that they are hard to identify at arteriography, surgery, or autopsy, but relatively larger than angiodysplasia.

索引词 可用于检索该条目的同义词与别名

• 大肠动静脉畸形
• 大肠Dieulafoy血管畸形