Heart-shaped Mediastinal Angiomyolipoma With Chylopericardium.

Angiomyolipomas are benign mesenchymal tumors classified as PEComas, consisting of blood vessels, smooth muscle, and fat, and generally found in renal tissue. Extrarenal cases are uncommon, and those of the mediastinum are rare, with only 23 reports in the literature. We present a successful surgically managed case of a symptomatic 44-year-old woman with a large heart-shaped mediastinal angiomyolipoma in the right hemithorax associated with chylopericardium.