Diffuse arterial thrombosis in a young man with elevated lipoprotein(a) and minimal atherosclerosis.

An increased incidence of premature atherosclerotic arterial occlusive disease was recently reported in young adults. This condition is characterized by early occurrence of severe symptoms, lower incidence of typical cardiovascular risk factors for atherosclerosis, different natural course of arterial disease vis-a-vis older population, and poor outcome of a standard treatment. This report describes a young man with aggressive arterial occlusive disease in the lower extremities and symptom-free occlusions of coronary and renal arteries in association with high levels of lipoprotein(a). Microscopic early atherosclerotic changes were noted in the occluded arteries of the amputated leg. Premature atherosclerotic arterial occlusive disease in young adults has different clinical and pathological patterns, necessitating a different approach for evaluation and treatment.