Acromioclavicular joint cysts have been reported in association with extensive rotator cuff tears. However, cysts related to rotator cuff pathology can aslo form in other areas. In this case report, we describe the presentation of a large breast cyst associated with rotator cuff arthropathy mimicking a rapidly enlarging breast tumor.
CraigEV. The acromioclavicular joint cyst. An unusual presentation of a rotator cuff tear. Clin Orthop Relat Res1986; 202: 189–92.
2.
GrohGlBadweyTMRockwoodCAJr. Treatment of cysts of the acromioclavicular joint with shoulder hemiarthroplasty. J Bone Joint Surg Am1993; 75: 1790–4.
3.
PostacchiniFPerugiaDGuminaS. Acromioclavicular joint cyst associated with rotator cuff tear. A report of three cases. Clin Orthop Relat Res1993; 294: 111–13.
4.
CooperHJMililloRKleinDADiFeliceGS. The MRI geyser sign: acromioclavicular joint cysts in the setting of a chronic rotator cuff tear. Am J Orthop (Belle Mead NJ)2011; 40: E118–21.
5.
MullettHBensonRLevyO. Arthroscopic treatment of a massive acromioclavicular joint cyst. Arthroscopy2007; 23: 446.e1–4.
