Calcification v Ossification

Xray

 

Calcification

- central pattern

- often increased opacity compared with bone

 

Ossification

- peripheral pattern

- similar density to bone

 

Tibial Myositis OssificansTHR Hetertropic Ossification

 

Histology

 

Calcification

- calcium salts only

 

Ossification

- osteoid matrix