Calcific Tendinitis of the Shoulder - Wheeless

Description: - deposits lie in the rotator cuff and contain H[2O, CO[3, & PO[4];
- usually does not occur until 4 th decade;
- diabetic patients are more likely to develop asymptomatic rotator cuff calcium deposits;
-> 30% of insulin-dependent diabetics had tendon calcification where as <10% of nondiabetics have this lesion;
- classification:
- may be divided into acute & chronic phases;
- type I: calcific nodule has sharply defined edges;
- type II: mixture of cloudy and sharp edges;
- type III: cloudy edges and somewhat transparent;
Wheeless' Textbook of Orthopaedics