Myxoma of the jaws. Report of three cases.

Odontogenic myxoma is a locally aggressive, uncommon benign tumour which arises from mesenchymal tissues normally present in developing teeth. The most frequent locations of odontogenic myxoma are the posterior regions of the mandible, as well as the condylar region. Since odontogenic myxomas are not associated with any specific clinical or radiological sign, a histopathological examination of the specimen is required for confirmation of the primary diagnosis. We report three cases of myxoma diagnosed during the last 18 years. Two of them were located in atypical regions of the mandible and one was located in the maxilla. Presence of a slow-growing swelling associated with expansion of the bone plates raised suspicion of a tumour in two cases, while in the third patient the myxoma was an incidental finding during radiological examination. Due to the unspecific nature of these lesions, in every case a histopathological examination of the surgical specimen was required for diagnostic confirmation. In one of the three reported cases, we shall underline the need to follow a correct diagnostic work-up of all radiolucent lesions of the jaws, in order to avoid contraindicated therapeutic procedures.

Mixoma de los maxilares. A propósito de tres casos / Myxoma of the jaws. Report of three cases

El mixoma odontogénico es un tumor benigno poco frecuente, con agresividad local, que se origina a partir de los tejidos mesenquimales de los dientes en desarrollo. Su localización preferente son las zonas posteriores de la mandíbula, así como el área condilar. Clínica y radiográficamente no muestra signos de especificidad, por lo que en su diagnóstico es necesario el estudio histopatológico del tejido para confirmar la tumoración.Presentamos tres casos de mixomas recogidos en los últimos 18 años, dos localizados en zonas atípicas mandibulares y uno en la maxilar. La presencia de un crecimiento lento, con expansión de la cortical ósea en do permitió s casos permitio sospechar la presencia del tumor, y el tercer caso constituye un hallazgo casual durante la exploración radiográfica. En todas las ocasiones ha sido necesario el estudio histopatológico de la pieza quirúrgica para confirmar el diagnóstico dada la inespecificida de la lesión; en uno de ellos llamamos la atención sobre la necesidad de realizar un correcto protocolo diagnóstico de las lesiones radiotransparentes de los maxilares, a efectos de evitar procedimientos terapéuticos contraindicados (AU)

Tumors metastatic to the mandible: analysis of nine cases and review of the literature.

Metastases to the mandible are rare. In this article, nine cases of tumors metastatic to the mandible of various origins and locations, including metastasis to the condyle, are reported. The most common primary tumor was breast adenocarcinoma (three cases). The clinical features, diagnosis, and treatment of metastatic lesions, especially emphasizing clinical and radiologic aspects, are described, and a review of the literature is presented.

[Lingual chondroma]. / Chondrome lingual.

In this article we report a case of chondroma which occurred in the lateral margin of the tongue of a 61-year-old male, briefly describing its clinical and pathologic features--including immunohistochemical findings--and reviewing the literature. There are only about twenty-five reported cases of this rare tumor in the literature, and the vast majority of them appeared in younger patients.