AN IMAGING EVALUATION OF ANGIODYSPLASIA SYNDROMES

Abstract

Current imaging techniques such as magnetic resonance, magnetic resonance angiography,computer tomography, ultrasound, plain x-rays, and lymphangioscintigraphy have enhanced theability to define blood and lymph vascular malformations in more precise pathophysiologicterms. Not only can these imaging modalities distinguish arterial anomalies from lymphatic andvenous angiodysplasia, but they also readily differentiate edema in the epifascial as opposed tothe subfascial peripheral compartments. Moreover, visceral lymphangiectasia (e.g., chylous andnon-chylous reflux), bone and muscle overgrowth, agenesis, and fat deposits can also bedelineated. Clinical examples are provided including an algorithm for approaching theseconditions.