Salivary Gland Carcinomas: Prognostic Factors

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Abstract
A retrospective study of factors of prognostic significance for clinical course and survival was performed using uni- and multivariate analyses in 251 patients with primary salivary gland carcinoma admitted during the period 1958-1992. Univariate analyses indicated that site of primary tumour, histology, clinical stage, presence of node metastases at primary diagnosis, and status of surgical margins were important prognostic factors for cause-specific survival, locoregional control and distant metastases. Multivariate analyses confirmed that histology was important for both locoregional control and cause-specific survival, whereas primary site was only of importance for locoregional control. Presence of node metastases at diagnosis was more important for locoregional control than clinical stage, whereas clinical stage was the most important factor for cause-specific survival. Status of surgical margins was of major importance for both cause-specific survival and locoregional control. Radiotherapy in addition to surgery improved locoregional control only, whereas survival was not affected.

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