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Treatment

Renal Embolization

Renal embolization uses tiny particles delivered through a pinhole catheter to stop the growth of renal masses such as angiomyolipomas, without surgery.

Renal embolization angiogram before and after blocking blood flow to a kidney angiomyolipoma (AML) through a pinhole catheter

What it is

An image-guided procedure that selectively blocks the blood supply to a kidney lesion, shrinking it and reducing the risk of bleeding while preserving healthy kidney tissue.

Best suited for

  • Patients with growing angiomyolipomas (AMLs) at risk of bleeding.
  • Renal masses where nephron preservation is a priority.
  • Pre-operative devascularization before partial nephrectomy.

How it works

  1. 1Small access in the wrist or groin under local anesthesia.
  2. 2A microcatheter is navigated into the artery feeding the lesion.
  3. 3Embolic particles are delivered to block blood flow precisely.
  4. 4Follow-up imaging confirms shrinkage and stability.

Benefits

  • Preserves kidney function compared with surgery.
  • Lowers the risk of life-threatening bleeding from AMLs.
  • No surgical incision.

Possible risks

  • Post-embolization syndrome (low-grade fever, flank pain) for a few days.
  • Rare non-target embolization.
  • Occasional need for a repeat treatment.

FAQ

About Renal Embolization

Answers patients most commonly ask before their consultation.

Embolization is selective; surrounding healthy tissue is preserved and overall function is typically maintained.

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