M11.012

Clinical Causes: Degeneration of shoulder tendons over time, leading to abnormal calcium deposits. Repetitive shoulder movements or injuries that cause tissue damage and subsequent mineralization. Age-related changes in cartilage and connective tissues, promoting calcification. Metabolic disorders that influence calcium and phosphate balance in the body. Genetic predisposition to abnormal calcium deposition in soft tissues.

Key Symptoms: Persistent pain in the affected shoulder, especially when moving or lifting the arm. Sudden, intense pain episodes often triggered by movement or pressure. Reduced range of motion due to pain or joint stiffness. Swelling or tenderness around the shoulder area. Possible crepitus or a grinding sensation during shoulder movement.

Diagnosis Path: Diagnosing hydroxyapatite deposition disease involves a combination of clinical evaluation and imaging tests. A healthcare provider will typically ask about symptom history and perform a physical examination. Imaging modalities like X-rays are crucial as they can reveal characteristic calcific deposits in the shoulder tendons or bursae. Ultrasound may also be used to detect calcium deposits and assess inflammation, while MRI scans can provide detailed images of soft tissues to rule out other shoulder conditions. Laboratory tests are generally not necessary unless an underlying metabolic disorder is suspected.

Treatment Protocols: Rest and activity modification to minimize shoulder stress. Application of ice packs to reduce pain and swelling. Nonsteroidal anti-inflammatory drugs (NSAIDs) for pain relief and inflammation control. Physical therapy exercises to improve shoulder mobility and strengthen surrounding muscles. Experience-guided procedures such as ultrasound-guided aspiration or steroid injections for persistent symptoms. In rare cases, surgical removal of calcium deposits may be necessary if conservative treatments fail.