Tumeurs musculaires des mâchoires

Muscular tumors are rare. They hardly ever present in jaws. Rhabdomyoma have never been reported in this localization. Clinical and radiological features are non-specific. The diagnosis is based on histopathological features. It is difficult to make for leiomyosarcoma. Surgical excision is the recommended treatment, conservative for leiomyoma, radical for other malignant tumors. Rhabdomyosarcoma has a good prognosis unlike leiomyosarcoma.     

Ameloblastic fibro-odontoma of the maxillary sinus

INTRODUCTION: Ameloblastic fibro-odontoma, ameloblastic fibroma, and odontoma are rare malformations, which are classified as odontologic tumors. They usually progress in an asymptomatic way, and making the histological distinction between these variants is very difficult. OBSERVATION: We report the case of a 14-year-old girl presenting with an ameloblastic fibro-odontoma of the maxillary sinus. The clinical signs were nasal obstruction and jugular tumefaction. Surgical excision was performed through a paralateronasal approach. The diagnosis of fibro-odontoma was confirmed by the histopathological analysis of the surgical piece. DISCUSSION: Odontologic tumors form a complex entity, the histological nature and the correlations of which are discussed.     

Tumeurs hamartomateuses et pluritissulaires

Hamartoma are defined by the benign proliferation of cells normally occurring in the affected tissue or organ. The structure of the hyperplasic region can greatly differ from the normal histology of the affected tissue, due to the quantity, the layout, or the maturation state of tumoral cells. Hamartoma of the maxilla and mandible are a heterogeneous group of diseases. They nevertheless share two major therapeutic characteristics: surgical treatment of the mass effect and the deformations induced by tumoral growth and mandatory screening for associated extra-facial tumors.     

Chirurgie endoscopique d’un fibro-odontome améloblastique mandibulaire

Introduction

Ameloblastic fibro-odontoma is a rare mixed odontogenic tumor. It occurs predominantly in children and young adults. This article reports a case of ameloblastic fibro-odontoma affecting a young boy who was treated by endoscopy.

Case report

An 11-month-old child was admitted for a right mandibular rapidly growing mass. Computed tomography confirmed the presence of a large radiopaque mass on the right mandible containing compartmented tooth-germs. A biopsy exeresis was performed to completely remove the tumor with an endonasal endoscope. The histological diagnosis was an ameloblastic fibro-odontoma.

Discussion

We performed the enucleation with a nasal endoscope to make sure that the entire lesion had been removed. Bone resection was minimal which should decrease the risk of growth disorders. The ameloblastic fibro-odontoma is a rare mixed odontogenic tumor usually asymptomatic and slow growing. Histopathology proves the diagnosis. The treatment is curettage, preserving the adjacent teeth.