title: Prevalence of shoulder enchondromas on routine MR imaging.
abstract: The objective of this study was to examine the prevalence of incidental shoulder enchondromas on routine magnetic resonance (MR) shoulder imaging. Consecutive routine shoulder MR examinations (N = 477) performed for suspected internal derangement were reviewed for the presence of incidental enchondromas. Incidental enchondromas were detected on 2.1% of routine MR shoulder examinations, the vast majority abutting the physeal plate. This prevalence is important to appreciate, in order to form a meaningful differential diagnosis of pathologic proximal humerus lesions.
authors.affiliation: School of Medicine, Johns Hopkins University, Baltimore, MD 21287, USA. ehong@jhmi.edu
authors.forename: Edmund D
authors.initials: ED
authors.lastname: Hong
authors.forename: John A
authors.initials: JA
authors.lastname: Carrino
authors.forename: Kristy L
authors.initials: KL
authors.lastname: Weber
authors.forename: Laura M
authors.initials: LM
authors.lastname: Fayad
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology; D002648:Child; D002812:Chondroma / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology; D005260:Female; D006801:Humans; D006811:Humerus / Q000473:pathology*; D033162:Incidental Findings; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012540:Scapula / Q000473:pathology*