title: Cystic lesions in the posterosuperior portion of the humeral head on MR arthrography: correlations with gross and histologic findings in cadavers.
abstract: OBJECTIVE
  The purpose of this study was to describe the appearance of cysts in the posterosuperior portion of the humeral head on MR arthrography and to correlate the MRI findings with the gross and histologic findings in cadavers.
  
  
  CONCLUSIONS
  Cysts in the posterosuperior portion of the humeral head (the bare area) were located in the lateral humeral head just posterior to the greater tuberosity. These cysts were lined with collagen connective tissue and were connected to the joint spaces. We suggest that these pseudocysts in the posterosuperior portion of the humeral head may be a normal variant rather than being an abnormal change or vascular channel.
authors.affiliation: Department of Diagnostic Radiology, Gil Medical Center, Gachon Medical School, Inchoen 405-760, South Korea.
authors.forename: Wook
authors.initials: W
authors.lastname: Jin
authors.forename: Kyung Nam
authors.initials: KN
authors.lastname: Ryu
authors.forename: Yong Koo
authors.initials: YK
authors.lastname: Park
authors.forename: Weon Kyu
authors.initials: WK
authors.lastname: Lee
authors.forename: Sung Hye
authors.initials: SH
authors.lastname: Ko
authors.forename: Dal Mo
authors.initials: DM
authors.lastname: Yang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001845:Bone Cysts / Q000473:pathology*; D002102:Cadaver; D006801:Humans; D006811:Humerus / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010784:Photomicrography; D012785:Shoulder Joint / Q000473:pathology*