Angiomyolipoma: Symptoms & Signs

Medically Reviewed on 4/17/2021

Angiomyolipoma refers to a benign tumor that has elements of three different tissues: vascular cells (angio-), immature smooth muscle cells (myo-), and fat cells (lipoma). These benign tumors are most often found in the kidney, but they can occasionally be found in the liver and rarely in the ovary, fallopian tube, colon, palate, or spermatic cord.

Angiomyolipoma may not cause specific signs and symptoms. If the tumor is large or the blood vessels in the tumor begin to bleed, symptoms may develop. When symptoms do occur, these depend on the location of the tumor and can include

Cause of angiomyolipoma

The cause of angiomyolipoma is not known.

Other angiomyolipoma symptoms and signs


The only purpose of the kidneys is to filter blood. See Answer

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Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.