title: Maxillary undifferentiated carcinoma with rhabdoid features.
abstract: The rhabdoid malignant tumor was individualized by Haas et al. as an independent entity within the kidney malignant neoplasms in 1981. From its histopathological characteristics, different cases of rhabdoid extra-renal tumor were documented. This aspect has been also recognized in a wide heterogeneous group of tumors (carcinoma, melanoma, mesothelioma and mesenchymal tumors). The diagnosis of extrarenal rhabdoid tumor is based on the presence of a proliferation of epithelioid cells with large nuclei, prominent nucleoli, abundant eosinophilic cytoplasm, and conspicuous cytoplasmic intermediate filaments, which compress the nuclei. In this article we present the case of a 50-year-old male patient with a malignant maxillary tumor with characteristic rhabdoid features. Its differential diagnosis will be discussed. The literature will also be reviewed.
authors.affiliation: Universidad de Oviedo, Escuela de Estomatología, Servicio de Cirugía Oral y Maxilofacial, Hospital Central de Asturias, España.
authors.forename: P M
authors.initials: PM
authors.lastname: Villarreal
authors.forename: L M
authors.initials: LM
authors.lastname: Junquera
authors.forename: M
authors.initials: M
authors.lastname: Herreros
authors.forename: J
authors.initials: J
authors.lastname: Ferreras
authors.forename: O
authors.initials: O
authors.lastname: Rodríguez
mesh_terms: D002277:Carcinoma / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008441:Maxillary Neoplasms / Q000473:pathology*; D008875:Middle Aged; D018335:Rhabdoid Tumor / Q000473:pathology