Secondary Aneurysmal Bone Cyst following Chondroblastoma of the Patella

Abstract

Aneurysmal bone cyst (ABC) is a rare benign cystic lesion of the bone that composes 1-2% of the entire bone tumors. Some are idiopathic, and some occur secondary to other tumors such as giant cell tumor and chondroblastoma. In this article, we report the clinical, radiographic, and histological findings of a secondary ABC following chondroblastoma of the patella with a review of the literature.

Lumbar Spine Aneurysmal Bone Cyst

“…fibrous dysplasia, giant cell tumor of bone, 3 osteosarcomas, chondromyxoid fibroma, 5 non-ossifying fibroma, 6 chondroblastoma. 7 Most commonly found in the locations as listed in Table 1. 3,4,8 The lesion in the spine usually presents with local pain, pathological fractures, spinal deformity, and neurological deficits.…”