title: 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.
authors.affiliation: Department of Orthopedics Surgery, Keio University School of Medicine , Tokyo, Japan.
authors.forename: Kato
authors.initials: K
authors.lastname: Tomoyuki
authors.forename: Michiro
authors.initials: M
authors.lastname: Susa
authors.forename: Robert
authors.initials: R
authors.lastname: Nakayama
authors.forename: Itsuo
authors.initials: I
authors.lastname: Watanabe
authors.forename: Keisuke
authors.initials: K
authors.lastname: Horiuchi
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Toyama
authors.forename: Hideo
authors.initials: H
authors.lastname: Morioka
keywords: chondroblastoma; patella; secondary aneurysmal bone cyst