[Oral cavity and oropharyngeal carcinomas in the materials of the University of Medical Science, ENT Department, in Poznan, in years 1980-1999].

624 patients with malignant neoplasms of the mouth and the oropharynx treated in the ENT Department K. Marcinkowski University of Medical Sciences in Poznań between 1980 and 1999 were analysed. Since the middle of the 90-ies a rapid increase of neoplasms incidence of this location has been observed. The most numerous group were tumours of the palatine tonsil (34.8%), tongue (32.5%), floor of the mouth (5.9%), soft palate (5.3%). Advanced neoplasms which encompassed the tongue, oropharynx, mouth floor base was observed in 134 patients (21.5%). The precise definition of their site of origin primary location was not possible to establish. In the analysed group males were dominating. Heavy smoker and alcohol-abuse constitute the majority of risk-factor patients. Poor dental status and mouth hygiene in this population was observed. In the histological examination squamous cell carcinoma was a dominating. Prognosis in patients with malignant neoplasms of the palatine tonsil were better in comparison with tongue cancer.