What is an Angiomyolipoma of the Kidney?

What is an angiomyolipoma of the kidney?

Angiomyolipoma of the kidney is a non-cancerous renal tumor with a high fat content, often associated with the genetic disease tuberous sclerosis. It is also known as renal angiomyolipoma and Kidney AML. It affects commonly the kidney, but it can also, even rarely, occur in other parts of your body.


Signs and symptoms may not develop in many patients with the disease. However, when the dilated blood vessels rupture, these symptoms may be seen:

  • Nausea
  • Vomiting
  • Hypertension
  • Sudden pain in back or flank
  • Shock (about 20% of patients)


Angiomyolipoma of the kidney can be discovered in kidney function tests, urinalysis, ultrasound scan, CT, MRI scan and incidentally in the physical examination of other organs.


Various options are offered for patients with angiomyolipoma of different sizes and at different locations. General treatments include:

  • Drug called everolimus
  • Kidney removal in some severe cases
  • Embolization technique to seal off blood vessels in an angiomyolipoma tumor


Most benign angiomyolipomas that are small and without dilated blood vessels cause few problems, however, the prognosis decreases as the tumor increases in size. The vessels in the angiomyolipoma tumor is at the risk of rupture if it grew too fast, and the disease may cause impaired function of the kidney.

Please don’t hesitate to contact the doctor if you need any professional help.

Keywords: angiomyolipoma; renal tumor; symptoms; treatment

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