Heterotopic ossification in the anterior maxilla: a case report and review of the literature.
A 13-year-old boy had complained of an asymptomatic swelling in the anterior maxilla for approximately 4 years. The patient reported no local trauma. The intra-oral examination revealed an exophytic lesion in the incisive papilla between the maxillary central and lateral incisor teeth. The radiographies detected no significant findings. Histopathologically, the lesion showed a dense fibrous tissue above the overlying mucosa. Bone ossification lay beneath a partially hypertrophic cartilage showing occasionally pleomorphic chondrocytes. Because of its microscopic aspects, heterotopic ossification may be mistaken for chondrosarcoma or other conditions involving periosteum, such as parosteal osteosarcoma. A case of heterotopic ossification in the anterior maxilla is presented, and clinicopathologic similarities with other osteochondromatous lesions are discussed.
Vencio
Eneida F
EF
Department of Oral Pathology, School of Dentistry, Federal University of Goias, Goiania, Brazil. vencio56@hotmail.com
Alencar
Rita C
RC
Zancope
Eduardo
E
D000293:Adolescent; D006801:Humans; D008297:Male; D008437:Maxilla / Q000000981:diagnostic imaging / Q000473:pathology*; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000473:pathology*; D010159:Palate / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography