NCIt synonyms : Aneurysmal Cyst of Bone; Aneurysmal Cyst of the Bone; ABC;
NCIt definition : A locally aggressive and destructive benign cystic neoplasm of the bone. It is characterized
by the formation of multiloculated hemorrhagic cystic spaces which are separated by
fibrous septa. It can arise from any bone, but usually affects the metaphysis of long
bones. It manifests with pain and swelling and may recur following curettage.;