The decision regarding treatment remains controversial. The main objective of this paper is to report on the survival results of 128 patients treated in a single institution. Clinically metastatic lymph nodes were palpable in 21 patients. Cox regression technique was used to construct the mathematical-statistical models, aiming to predict the risks of recurrence and of death as functions of the different variables under study. There were significant differences in survival rates according to N stage, bone involvement, tumor histology, sex, and type of surgery.
Prognosis involves several factors related to stage, histology, and treatment.
In both entities, smears contained variable proportions of malignant cells, occasionally arranged in pseudopapillary formations. Our overall combined analyses showed a marked DNA aneuploidy and numerical abnormalities involving all chromosomes. DNA ploidy analysis of both the primary and cultured tumor cells showed a hyperdiploid stemline with DNA indices of 2.6. Wilde A TI - Parotid cancer. Parotid cancers are relatively rare but will be encountered in any head and neck oncology practice.