Peripheral osteoma of the maxillary sinus: a case report

BACKGROUND: Paranasal sinus osteomas are rare benign tumors. Although various theories such as trauma and infection have been proposed, it is difficult to establish the pathogenesis of osteoma. Osteomas may be detected with routine radiographic examination or the tumors may enlarge and cause symptoms. Osteomas most frequently occur in the frontal and ethmoid sinuses, and are rare in the maxillary sinus. CASE REPORT: In the present study, we report a case of an 18-year-old woman with a maxillary sinus osteoma. Radiographically, the tumor was characterized as a radiopaque, well-delimited lesion in the periapical region of teeth 27 and 28 that had positive sensitivity test. After computed tomographic scanning and complete removal of the tumor, the histopathological diagnosis was osteoma. After 1 year of follow-up, the patient shows no signs of recurrence.     

Central osteoma of the maxilla with involvement of paranasal sinus

Osteoma is an osteoblastic benign tumor characterized by the proliferation of either compact or cancellous bone. In the jaws, the most of cases reported in the literature presented as peripheral solitary lesions, involving preferably the posterior region of the mandible. However, central osteomas are quite rare, especially in the maxillary bone. The purpose of this article was to present the clinical, radiographic, surgical, and histologic features of a solitary central osteoma of the maxilla with involvement of the paranasal sinus and to review the literature for central osteomas located in the jaws. Our clinical report participates to literature as the 12th case of central osteoma in the jaws and the fourth case in the maxillary bone.     

Ameloblastoma after surgical removal of an impacted mandibular molar. A case report

A case of an ameloblastoma diagnosed about 3 1/2 years after removal of an impacted mandibular 3rd molar is presented. The pre-operative radiographs, though poor in quality, showed an ill-defined radiolucency in relation to the tooth. This feature was not apparent to the examiners at the time of first presentation. Despite unfavourable working conditions in developing countries, a high level of suspicion should be maintained to avoid serious sequelae at a later stage.     

A giant osteoma of the mandible: case report.

A 53-year-old patient with a giant osteoma of the right mandible is presented. The clinicopathological features of osteoma of the mandible are discussed and Gardner's syndrome was excluded.     

Endoscopic removal of an implant from the maxillary sinus: a case report

Slippage of an implant into the maxillary sinus is an exceptional complication that may occur during immediate implant placement. In this study, removal of a displaced implant into the maxillary sinus with the aid of endoscopy via buccal window approach is reported. Management of such a rare complication is also addressed.     

Polycythemia vera in an oral surgical patient. A case report

Polycythemia vera is a stem cell disorder that results in an increase in the production of red blood cells. Although numerous mechanisms have been suggested, the cause of the disease is unknown. Diagnosis is based on clinical and laboratory presentation. This article reviews the history of polycythemia vera and illustrates a representative case report of the disease process. Postoperative morbidity in the surgical patient is discussed with respect to preoperative therapeutic control. Recommendations are made for preoperative therapy in patients undergoing oral and maxillofacial surgery.     

Frontal sinus pneumocele. A case report.

A pneumocele refers to an aerated sinus with either focal or generalized thinning of the bony sinus wall. Although the pathogenesis of a pneumocele is not yet known, it is presumed that increased intrasinusal pressure, due to a one-way valve between the nasal cavity and the affected sinus, is responsible for this condition. A 37-year-old man with frontal bossing, who underwent surgery for cosmetic reasons, is presented.     

Peripheral osteoma of the maxilla: report of an unusual case

Peripheral osteomas of the maxilla are relatively rare. A case of a solitary peripheral osteoma of the anterior right maxilla in a 16-year-old girl is presented. The tumor was asymptomatic and was removed via an intraoral approach without any complications. Both hamartomatous and neoplastic factors have been advocated concerning the pathogenesis of such lesions, but no definite conclusion has been reported. Certain features of the case, such as obstruction of the eruption of the permanent canine, displacement of an adjacent tooth, intraoperatively noted infiltration of the interdental bone, and clearly abnormal histological bone structure might support the neoplastic nature of this lesion.     

Osteoid osteoma of the zygoma: report of an unusual case

BACKGROUND: Osteoid osteoma is a benign tumor of bone characterized by pain, usually occurring at night, that shows a dramatic response to aspirin. The literature contains reports of only a few cases in the head and neck region. CASE DESCRIPTION: The authors present an unusual case of an osteoid osteoma of the craniofacial bones. The patient sought an evaluation of pain in the area of the right zygoma. One of the authors, an oral and maxillofacial surgeon, noted a small area of swelling. The patient underwent radiographic, computed tomographic and nuclear medicine studies. On the basis of the images and the biopsy report, the authors made a diagnosis of osteoid osteoma. In this article, they describe the treatment of and new modalities of therapy for this condition. CLINICAL IMPLICATIONS: The general dentist should be aware of any lesion that is not common. If the generalist has any doubt about the nature or management of an unusual oral lesion, referral to appropriate specialists is mandatory.     

Simultaneous repair of an orbital floor fracture and removal of an ethmoid osteoma: case report and review of the literature

A case is presented of an ethmoid osteoma, which was discovered during the investigation of an orbital floor fracture. The osteoma was removed at the same time as orbital floor repair and special attention paid to preserving the medical canthal structures.     

Huge osteoma of the mandible: report of case.

A review of the literature on osteoma of the jaws as well as its relationship to Gardner syndrome was presented. A case report of a compact or ivory osteoma that had been slowly enlarging for a minimum of eight years was described. The one-year postoperative examination has shown no discernible resumption of growth.     

Peripheral osteoma of the maxilla: A rare case report

Osteoma is a benign osteogenic lesion with a very slow growth, characterized by proliferation of either cancellous or compact bone. Depending on its location, osteoma may be classified as central, peripheral or extraskeletal type. Although peripheral osteomas of the upper jaw are rare, diagnosticians can however encounter them in their clinical practice, which are probably misdiagnosed. These should be considered in the differential diagnosis of any slow-growing, non-tender, bony hard, non-compressible, non-fluctuant and non-pulsatile swelling present on the Oral and Maxillofacial region. We report a rare case of maxillary peripheral osteoma in a 50-year-old female patient. To best of our knowledge this is the eleventh case of maxillary osteoma reported in the English language literature.     

Juvenile angiofibroma of the maxillary sinus. A case report.

The clinicopathological features of a rare case of juvenile angiofibroma originating from the maxillary sinus of a 13-year-old boy are reported. This tumor was composed of angiomatous and fibrous structures. The analysis of nucleolar organizer regions (NOR) of the various components of this tumor indicated that the fundamental elements were the fibroblastic cells, rather than the vascular endothelial cells.     

Congenital sinus of the upper lip. A case report

A case report of a congenital midline sinus in the upper lip of a 13-year-old girl is presented. Theories proposed regarding the aetiology of this rare anomaly are discussed.