Angiomyolipoma natural history, complications and prognosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2] Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [3], Faizan Sheraz, M.D. [4]

Overview

If left untreated, small angiomyolipomas and those without dilated blood vessels (aneurysms) cause few problems. Small angiomyolipomas are associated with the most favorable prognosis.Common complications of angiomyolipoma include infection, hematuria and flank pain.

Natural History

If left untreated, small angiomyolipomas and those without dilated blood vessels (aneurysms) cause few problems. Angiomyolipomas grow as rapidly as 4 cm in one year.

Prognosis

Small angiomyolipomas are associated with the most favorable prognosis. An angiomyolipoma larger than 5 cm and those containing an aneurysm pose a significant risk of rupture, which is a medical emergency as it is potentially life-threatening. Cumulative risk of hemorrhage is estimated to be:

10% in men
20% in women

Complications

Common complications of angiomyolipoma include:

Retroperitoneal hemorrhage from renal angiomyolipoma.^[1]

References

↑ Image courtesy of Dr Matt A. Morgan and Dr Behrang Amini et alRadiopaedia(original file [1]). Creative Commons BY-SA-NC

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[radio-1] Image courtesy of Dr Matt A. Morgan and Dr Behrang Amini et alRadiopaedia(original file [1]). Creative Commons BY-SA-NC

[1]