title: [Muscular abnormalities of the small intestine. Their possible role in ischemic lesions of the intestine].
abstract: An association was noticed between ischaemic lesions of the gut and perivascular and entero-mesenteric smooth muscle bundles in the intestinal wall which has not been reported in the literature. Having observed these abnormalities in two ischaemic intestinal specimens, a retrospective study was undertaken to determine their frequency. 148 specimens from 137 patients with ischaemic lesions, covering a period of five years, were examined. 33 specimens were devoid of abnormal muscular structures. Among the remaining 115 specimens, 66 (57,4%) presented perivascular bundles at different levels of the thickness of the wall and/or mesentery. Some of these bundles contained nerve plexuses. 25 specimens had entero-mesenteric bundles. Of a control group of 67 surgical specimens devoid of ischaemic lesions, 17 had perivascular bundles and 8 entero-mesenteric structures. It is postulated that the abnormal perivascular structures may contribute to the genesis of the ischaemic gut lesions. The entero-mesenteric bundles may serve simply as anchors in the mesentery.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007421:Intestine, Small / Q000002:abnormalities* / Q000098:blood supply*; D007511:Ischemia / Q000209:etiology*; D008875:Middle Aged; D009130:Muscle, Smooth / Q000473:pathology
vernacular_title: Anomalies musculaires de l'intestin grêle. Leur rôle éventuel dans les lésions ischémiques de l'intestin.