Presentation
Shoulder pain and loss of range of motion, dyslipidemia, obesity, hyperuricemia. HLA-B27 positive.
Patient Data
Solid calcification with regular margins starting from the lower surface of the glenoid, about 2 cm long. There are no signs of scapulohumeral osteoarthritis. Subacromial space is normal. Mild calcification in the soft tissue adjacent to the acromion. Signs of acromioclavicular osteoarthritis are visible.
Case Discussion
Ankylosing spondylitis is a seronegative spondyloarthropathy with the presence of the HLA-B27 gene that causes erosions and ankylosis of the spine and of the sacroiliac joints. In some cases, inflammation with heterotopic calcifications also occurs in other joints, such as shoulders, hips, knees, or ankles, with pain and reduced mobility. Cuff tendonitis and enthesitis are common features in the shoulder in patients with ankylosing spondylitis.
Radiographer: TSRM Nunzio Bianco.