Non-traumatic myositis ossificans circumscripta
: A diagnosis trap.
Aneiros-Cachaza, "Myositis ossificans circumscripta without history of trauma, " Clinical Medicine & Research, vol.
Gumprecht, "The difficulties of diagnosing myositis ossificans circumscripta in the paraspinal muscles of a human immunodeficiency virus-positive man: magnetic resonance imaging and temporal computed tomographic findings, " Archives of Otolaryngology--Head and Neck Surgery, vol.
(1,5) It is also known as post-traumatic heterotopic ossification, non-hereditary heterotopic ossification and myositis ossificans circumscripta
. (3,6) Radiographic imaging is used for a definitive diagnosis with evidence of bone formation being detected 3 to 4 weeks after the initial trauma.
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.
Myositis ossificans circumscripta of the buc- cinator muscle: first report of a rare complication of mandibu- lar third molar extraction.
Myositis ossificans circumscripta
: a benign lesion with a malignant differential diagnosis.
Myositis ossificans circumscripta of the knee improved by alendronate.
* some authors use the term myositis ossificans circumscripta (MOC) to describe the heterotopic ossification of soft tissue of an idiopathic nature (25) * other authors use MOC as synonymous with myositis ossificans traumatica (8, 16) * has been reported following burns, tetanus, and polio and neurogenic injuries including spinal cord injuries, closed head injuries, central nervous system infections, and stroke (1,9) 3.