Myositis ossificans progressiva is a rare autosomal dominant disease, inherited as a trait with variable expression and complete penetrance.
1) which occurs in most of the cases of myositis ossificans progressiva. This was noticed by the parents of the patient during childhood.
Myositis ossificans progressiva is generally a clinical diagnosis that is based on the presence of congenital anomalies of the great toes, progressive heterotopic ossification and the classical pattern of disease progression.
Myositis ossificans progressiva is a rare congenital disease of progressive ectopic ossification of soft tissues.
5 Some authors believe myositis ossificans traumatica to be an inadequately descriptive term because in as many as 25% of cases, no history of trauma can be obtained.6 Apart from myositis ossificans progressiva
, which has a genetic origin, European authors have described two other variants of myositis ossificans as traumatic myositis ossificans circumscripta and atraumatic myositis ossificans circumscripta.7 These authors have suggested an infective origin to atraumatic myositis ossificans.8 In the present case report history of trauma during mastication was estab- lished.