Athanasoulis C A, Galdabini J J, Waltman A C, Novelline R A, Greenfield A J, Ezpeleta M L
Cardiovasc Radiol. 1977;1(1):3-13. doi: 10.1007/BF02551967.
Colonic angiodysplasia is a vascular lesion of the colon that may become the source of low grade chronic or intermittently massive rectal bleeding. It is a lesion of the elderly, almost always found in the cecum and the ascending colon. Etiology and pathogenesis are unknown. The diagnosis can be made with angiography based on the demonstration of a vascular tuft and early opacification of draining veins. Right hemicolectomy is the mode of therapy. The lesions are minute, and in resected specimens they can be found only with special vessel injection techniques. Histologically, the lesions represent clusters of dilated vessels, mostly veins, in the mucosa and submucosa of the cecum and ascending colon.
结肠血管发育异常是结肠的一种血管病变，可能成为低度慢性或间歇性大量直肠出血的来源。它是一种老年人的病变，几乎总是见于盲肠和升结肠。病因和发病机制尚不清楚。基于血管丛的显示和引流静脉的早期显影，血管造影可作出诊断。右半结肠切除术是治疗方式。这些病变很小，在切除的标本中只有通过特殊的血管注射技术才能发现。组织学上，这些病变表现为盲肠和升结肠黏膜及黏膜下层扩张血管的簇集，主要是静脉。
