What is an aneurysmal bone cyst?

Also known as: ABC, bone cyst

An aneurysmal bone cyst is a benign (non-cancerous) lesion that develops within the bone, fills with blood and can grow aggressively. Though it’s referred to as a cyst, it’s actually a non-cancerous tumor. Treatment is recommended due to the damage that the cyst can produce as it grows quickly.

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Reviewed by: Maggie Fader, MD

This page was last updated on: 1/29/2019 3:21:13 PM