title: Bare area of the glenoid: magnetic resonance appearance with arthroscopic correlation.
abstract: OBJECTIVE
  To review the radiologic findings of a rarely reported focal area of acquired cartilage thinning located at the center of the glenoid fossa.
  
  
  METHODS
  We retrospectively reviewed the medical records of 3 patients, each possessing a bare area of the glenoid detected on magnetic resonance (MR) imaging. A literature search was performed to obtain the most current information regarding this uncommon entity.
  
  
  RESULTS
  Magnetic resonance imaging of the glenoid demonstrated a smoothly marginated subcentimeter area of thinning of the central articular cartilage containing hyperintense joint fluid or contrast in the case with MR arthrography. Arthroscopic correlation was obtained in a single case.
  
  
  CONCLUSIONS
  The bare area of the glenoid is an acquired cartilage defect located at the center of the glenoid articular surface. Characteristic findings can be seen on MR imaging. Care should be taken not to mistake this acquired condition for posttraumatic defects of the glenoid articular cartilage.
authors.affiliation: Department of Radiology, Wilford Hall Medical Center, San Antonio, TX, USA.
authors.forename: Justin Q
authors.initials: JQ
authors.lastname: Ly
authors.forename: Liem T
authors.initials: LT
authors.lastname: Bui-Mansfield
authors.forename: Mitchell J
authors.initials: MJ
authors.lastname: Kline
authors.forename: Thomas M
authors.initials: TM
authors.lastname: DeBerardino
authors.forename: Dean C
authors.initials: DC
authors.lastname: Taylor
mesh_terms: D000328:Adult; D001182:Arthroscopy; D002358:Cartilage, Articular / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012189:Retrospective Studies; D012785:Shoulder Joint / Q000473:pathology*; D020069:Shoulder Pain / Q000209:etiology / Q000473:pathology