MARQUES, Pedro et al. Artroplastia total invertida do ombro em doente com quisto acrómio-clavicular. []. , 21, 1, pp.71-76. ISSN 1646-2122.

The acromioclavicular cysts are a rare disease, most of them associated with degenerative shoulder pathology. They have a clinic presentation similar to the torn rotator cuff, one of the diagnostics we should consider. We present a case of a 65 year old patient, with a painless, pulseless mass in his right shoulder, without previous trauma, and with marked shoulder limitation. Radiologic studies showed a acromioclavicular cyst, associated with a torn rotator cuff and severe arthrosis of the shoulder. We proceeded to the surgical treatment, that consisted in cyst removal and a total invert total arthroplasty of the shoulder. With 22 months of follow up, the patient is asymptomatic, without cyst recurrence and with good shoulder mobility.

: Acromioclavicular cyst; total inverted shoulder arthroplasty; torn rotator cuff.

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