Traumatic myositis ossificans in masticatory muscles.
3 cases of traumatic myositis ossificans circumscripta, located within the masticatory muscles are presented. Two of the lesions involved the masseter muscle, and exceptionally, 1 involved the temporalis muscle. Three pathognomonic histological zones, permitting the differential diagnosis of myositis ossificans from sarcomatous lesions, are described, and treatment incorporating ideally early surgical intervention with wide excisional biopsy of the lesion is stressed.
Lello
G E
GE
Makek
M
M
D000293:Adolescent; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008406:Masseter Muscle / Q000293:injuries / Q000473:pathology; D008410:Masticatory Muscles / Q000293:injuries* / Q000473:pathology; D008875:Middle Aged; D009221:Myositis Ossificans / Q000209:etiology* / Q000473:pathology; D013703:Temporal Muscle / Q000293:injuries / Q000473:pathology