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  • Title: Cystic lesions in the posterosuperior portion of the humeral head on MR arthrography: correlations with gross and histologic findings in cadavers.
    Author: Jin W, Ryu KN, Park YK, Lee WK, Ko SH, Yang DM.
    Journal: AJR Am J Roentgenol; 2005 Apr; 184(4):1211-5. PubMed ID: 15788596.
    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. CONCLUSION: 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.
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