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Renal Angiomyolipoma Embolization

What is embolization of renal angiomyolipoma?

Angiomyolipoma embolization is a minimally invasive procedure done by an interventional radiologist. This procedure decreases blood supply to the angiomyolipoma. This causes the angiomyolipoma to shrink.

How is embolization of renal angiomyolipoma performed?

Prior to the procedure, a local anesthesia is given to make the patient comfortable. Under image guidance, the radiology inserts a catheter into the artery, usually through the groin. Once the catheter reaches the blood supply of the angiomyolipoma, tiny particles are inserted into the vessel. This decreases blood flow to the angiomyolipoma. This will cause the lesion to shrink.

Minimally invasive instruments used help lower the risk of complications compared to traditional surgery. The procedure takes about an hour to perform.

What to expect after embolization of angiomyolipoma

After the embolization procedure, you may feel a little pain or discomfort in the lower back area. You will recover in the recovery suite and then be discharged home the same day.

What are the benefits of embolization of angiomyolipoma?

Due to the minimally invasive nature of the procedure, the risk of complications from embolization is low. There is still a risk of bleeding, but the risk is much lower when compared to traditional surgery.

What is the risks of embolization of angiomyolipoma?

There is risk with embolization of angiomyolipoma as there is with any procedure. There is risk of bruising or bleeding where the catheter enters the body, typically the groin. There is risk of allergic reaction from the sedation medication. There is a possibility the embolization can’t be done because the blood vessel feeding the angiomyolipoma cannot be identified. Angiomyolipoma can grow back after embolization, typically over several years. Therefore, long-term monitoring is needed, typically with imaging such as ultrasound.

Renal Angiomyolipoma (AML)
Renal Angiomyolipoma Post-procedure Instructions

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