Prognostic factors for long term results of the treatment of patients with malignant submandibular gland tumors.

Background: Concerning malignant submandibular gland tumors, a rare disease entity, there are few recent reports of long term treatment results and of prognostic factors modifying these results.

Methods: The clinical data of 43 patients with malignant submandibular gland tumors who were treated at the Netherlands Cancer Institute between 1973 and 1994 were reviewed to evaluate treatment results and to control described prognostic factors. The median follow-up for patients alive at the end of follow-up was 143 months.

The development of a prognostic score for patients with parotid carcinoma.

Background: Understanding of prognostic factors in parotid carcinoma has grown considerably. In particular, clinical tumor staging and histologic classification have been found to be prognostically important. Univariate and multivariate analyses have indicated that other variables, such as age, pain, skin invasion, and facial nerve impairment, are important predictors as well.

Myxoma of the paranasal sinuses.

Myxomas of the paranasal sinuses are rare but well described in the literature. They may be related to dental malformations or missing teeth, but may also occur without any such abnormalities. Their local aggressiveness and ability to erode bone should not be underestimated, and they should be totally removed whenever possible.