RESUMO
Metastases from infraclavicular neoplasms to the oral cavity are rare, and the anatomical structures most frequently affected are the maxillae. The primary sites that develop metastases to head and neck include lung, breast, liver, thyroid gland, kidney and melanomas, among others. The breast is one of the usual primary regions that can present them. In the literature, most metastases to these regions correspond to squamous cell carcinomas and adenocarcinomas; few studies report other type of neoplasms such as phyllodes tumour (PT) that present this behaviour. The importance of identifying metastatic disease to the oral cavity, be it as the first manifestation of a neoplasm from unknown origin or as a development in the course of the disease, is that it allows determination of adequate treatment, which has an effect on the patient's prognosis. The usual behaviour of PT is frequent recurrence and, when metastases are present, these are to lungs and bone. Two cases of malignant PT metastasising to tongue and lip are presented, as well as a review of the literature.
Assuntos
Neoplasias da Mama , Neoplasias Labiais/secundário , Tumor Filoide , Neoplasias da Língua/secundário , Adulto , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Terapia Combinada , Progressão da Doença , Feminino , Humanos , Imuno-Histoquímica , Lábio/patologia , Neoplasias Labiais/diagnóstico , Neoplasias Labiais/mortalidade , Neoplasias Labiais/patologia , Mastectomia Radical Modificada , Mastectomia Segmentar , Pessoa de Meia-Idade , Metástase Neoplásica , Tumor Filoide/diagnóstico , Tumor Filoide/tratamento farmacológico , Tumor Filoide/mortalidade , Tumor Filoide/patologia , Tumor Filoide/secundário , Tumor Filoide/cirurgia , Língua/patologia , Neoplasias da Língua/diagnóstico , Neoplasias da Língua/mortalidade , Neoplasias da Língua/patologiaRESUMO
Reports about the frequency of odontogenic tumors are scarce, and diagnostic criteria used in the reports are not uniform. This article presents the results of a retrospective study of odontogenic tumors recorded in four services of diagnostic pathology in Mexico City (two dental schools, one cancer hospital, and one private oral pathology service). The final diagnosis in each case was based on the 1992 histologic criteria of the World Health Organization. The frequency of odontogenic tumors, expressed as a percent of all oral and maxillofacial specimens, ranged from 0.8% in the cancer hospital (0.02% of all biopsies) to 3.7% in the private oral pathology service. The frequency was identical for the two dental schools (2.5%). We found a total of 349 odontogenic tumors; of these, 345 were benign (98.8%), and 4 (1.1%) were malignant (3 were primary intraosseous carcinomas and 1 was a malignant ameloblastoma). The most frequently occurring tumors were odontoma (34.6%), ameloblastoma (23.7%), myxoma (17.7%), adenomatoid odontogenic tumor (7.1%), and calcifying odontogenic cyst (6.8%). Although relatively rare, odontogenic tumors are still an important cause of extensive surgical procedures in Mexico.