RESUMO
BACKGROUND: Liposarcoma is considered one of the most frequently occurring tumors of the soft tissues, representing 17% to 30% of all mesenchymal cell tumors. It is less common in the head and neck representing <10% of tumors in this region. The reconstruction of defects derived from resection of these tumors presents a surgical challenge. New three-dimensional digital technologies allow more exact surgery, cause less morbidity, and achieve adequate aesthetic outcomes. OBJECTIVE: The aim of this article was to describe the complex reconstruction of a defect caused by the resection of a liposarcoma in the temporal region. METHODS: Three-dimensional technology allowed patient planning and a reconstruction that was as exact as possible. A made-to-measure polymethyl methacrylate prosthesis was used to correct the defect in the zygomatic arch. The temporal fossa was covered with a standard porous polyethylene prosthesis. CONCLUSIONS: Satisfactory esthetic and functional results were achieved using three-dimensional digital technology for treatment planning and to fabricate a made-to-measure polyethylene prosthesis and surgical guide.
Assuntos
Lipossarcoma/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Próteses e Implantes , Desenho de Prótese/métodos , Neoplasias Cranianas/cirurgia , Osso Temporal/cirurgia , Zigoma/cirurgia , Idoso , Feminino , Humanos , Imageamento Tridimensional , Lipossarcoma/reabilitação , Polietileno , Implantação de PróteseRESUMO
El mejor tratamiento para los tumores primarios y metastásicos del hígado es la resección quirúrgica, pero esto es factible sólo en una pequeña parte de los pacientes. En los últimos años se han desarrollado otros tratamientos y los pacientes inoperables pueden ser sometidos a técnicas ablativas que pueden erradicar el tumor, disminuyendo al mínimo la pérdida de tejido hepático funcional que es inevitable con la resección convencional. La aplicación de frío, mediante criocirugía, y la aplicación de calor, mediante radiofrecuencia, microondas o láser permiten el control local del tumor y a veces prolongar la supervivencia. Hemos revisado las indicaciones, técnica, complicaciones y resultados de estas prometedoras técnicas ablativas (AU)
