<unk>  (also<unk> /calcifying/calcified/calcareous tenonitis/tendonitis/tendinopathy, and tendinosis calcarea) is a disorder characterized by deposits of hydroxyapatite (a crystalline calcium phosphate) in any tendon of the body, but most commonly in the tendons of the rotator cuff (shoulder), causing pain and inflammation.
Pain is often aggravated by elevation of the arm above shoulder level or by lying on the shoulder. Pain may waken the patient from sleep. Other complaints may be stiffness, snapping, catching, or weakness of the shoulder.
The condition is related to and may cause frozen shoulder.
The<unk>  deposits are visible on X-ray as discrete lumps or cloudy areas. The deposits look cloudy on X-ray if they are in the process of re-absorption, and this is also when they cause the most pain. The deposits are crystalline when in their resting phase and like toothpaste in the re-absorptive phase. However, poor correlation exists between the appearance of a<unk>  deposit on plain x-rays and its consistency on needling.
Calcific tendinitis
Retrocalcaneal bursitis
Subacromial bursitis
Olecranon bursitis
Prepatellar bursitis
Chondromalacia patellae
Tenosynovitis
Osteochondritis