Idiopathic intimal hyperplasia of small arteries and arterioles affecting intestines and myocardium.

We report the case of a 52-year-old woman dying from a noninflammatory, occlusive vasculopathy. Histology showed marked intimal hyperplasia of small arteries of the intestines and myocardium with subsequent infarction of myocardium, large intestine and gallbladder. A comprehensive work up including laboratory studies, clinical investigations and postmortem failed to assign this condition to any of the known vascular diseases.