Gigantic Peripheral Osteoma of the Mandible: A Case Report

Abstract

Osteomas are osteogenic lesions that have a limited growth potential. They are comprised of histologically and radiographically normal bone. Osteomas are categorized as central, peripheral or extraskeletal according to location. Clinically, peripheral osteomas (PO) are unilateral, sessile or pedunculated and have mushroom-like lesions ranging from 10 to 40 mm in diameter. Osteomas affecting the mandible are rare. In this report, we presented a gigantic peripheral mass on the left mandible in a 55-year old patient exhibiting clinical signs related to neoplasia.

Osteoma of temporomandibular joint: a rarity

“…However, development of osteoma at other sites suggests involvement of other factors in addition to predisposition. Origin from embryological cartilaginous rests or persistent embryological periosteum has also been believed by researchers who could not get data relating to trauma or the onset of the lesion 6 7. In this patient minor trauma that was not recollected could be a possibility as the onset of lesion 7 years previously.…”

“…Multiple osteomas known as osteomatosis, is seen in Gardner's syndrome which is defined as multiple osteomas of the jaws accompanied by colorectal polyps with high malignant potential, anomalies involving soft or hard tissues, congenital retinal pigment hypertrophies and multiple impacted or supernumerary teeth, enostoses or epidermoid cysts 6 7…”

Peripheral Osteoma of Mandibular Angulus: Analysis of the Literature and Report of a New Case

“…They claim that this mechanism explains why osteomas are more likely to arise in areas which the strong muscle attachments are present and susceptible to trauma (9,10). On the other hand, because of the limited but continuous growth potential of the osteomas that can reach huge sizes, they are also considered as neoplastic lesions (1,7,11).…”

“…Clinically, osteomas are usually asymptomatic and detected on routine radiographic examinations. They have slow and continuous growing potential that can cause facial asymmetry or disfigurement without any complaints (9,11). Radiographic appearance of the osteoma is characterized by an oval, radiopaque, well-circumscribed mass approximately 1-4 cm in diameter, with a density similar to that of normal bone.…”

“…Radiographic appearance of the osteoma is characterized by an oval, radiopaque, well-circumscribed mass approximately 1-4 cm in diameter, with a density similar to that of normal bone. The presence of an oval, radiopaque well circumscribed mass attached by a broad base or pedicle to the affected cortical bone is the hallmark of peripheral osteoma (3,11).…”