Analysis of cecal vasculature in the search for vascular malformations

J. W. Baer, S. Ryan

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Four patients with gastrointestinal bleeding due to vascular malformations of the cecum are described with emphasis placed on the clinical, angiographic and pathologic features. Barium enema examinations were negative in all 4 cases, but in 3 of 4 early venous filling identified the cecal vascular malformation. Postoperative angiographic studies of the cecal specimens using electron emission radiography were helpful in identifying the small lesions. The pathologic features and possible pathogenesis of this disorder are reviewed. Angiographic and microscopic studies in a control group of 60 post mortem and surgically extirpated cecums defined the normal circulation of the antimesenteric border. In this group, no vascular malformations were present. As vessels arborize and become smaller, it becomes difficult to distinguish arteries from veins. Distinction cannot be made between pre capillary arterioles, capillaries, and post capillary venules. The vascular malformation probably represents a local area of increased blood flow which results in dilatation of capillaries and veins.

Original languageEnglish
Pages (from-to)394-405
Number of pages12
JournalAmerican Journal of Roentgenology
Volume126
Issue number2
DOIs
StatePublished - 1976
Externally publishedYes

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