Intramuscular rotator cuff cysts: association with tendon tears on MRI and arthroscopy.

Kassarjian, Ara; Torriani, Martin; Ouellette, Hugue; Palmer, William E · AJR Am J Roentgenol · 2005

cross_sectional · Level IV

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Abstract

This study was designed to explore the relationship between intramuscular cysts and rotator cuff tendon tears. Intramuscular cysts are strongly associated with rotator cuff tendon tears. Identification of such a cyst should prompt a search for a rotator cuff tear. Findings on MR arthrography and surgery suggest that a delaminating component of the rotator cuff tear may lead to the development of these cysts and may explain the occasional discrepancy between location of tears and location of cysts.

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