Concomitant arteriovenous vascular malformation in skeletal muscle: a clinical, angiographic and histologic study.
A vascular malformation in skeletal muscle is described in 4 patients. Pathologically and anatomically, it consists of an abundance of concomitant arteries and veins and thick-walled capillaries. Angiography demonstrates the high vascularity of the lesion, and contrast medium appears early in draining veins indicating arteriovenous shunting. In the angiograms, the highly vascular region displays a certain striation which is due to the presence of muscle fiber bundles running between the pathologic vessels. This angiographic picture suggests benignity: an intramuscular malignant tumor rarely leaves intact muscle fiber bundles passing right through it.
D000328:Adult; D000792:Angiography; D001165:Arteriovenous Malformations / Q000175:diagnosis*; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006222:Hamartoma / Q000175:diagnosis; D006392:Hemangioma, Cavernous / Q000175:diagnosis*; D006801:Humans; D008297:Male; D009132:Muscles / Q000098:blood supply*; D009135:Muscular Diseases / Q000175:diagnosis*; D012881:Skin Temperature