hydroxyapatite

Hydroxyapatite Deposition

Types

 

Dystrophic or Metastatic

 

1.  Metastatic 

- hypercalcaemia / hyperphosphatemia

 

2.  Dystrophic 

- more common

- onto damaged connective tissue

- tendon / ligament / cartilage

- calcific tendonitis shoulder

- Pellegrini-Steida lesion MCL

 

Pathology

 

Deposited around chondrocytes & into avascular portion of CT