Prognostic Variables in Parotid Gland Cancer

Robert A. Frankenthaler, MD; Mario A. Luna, MD; Sang Sook Lee, MD; Kie-Kian Ang, MD, PhD; Robert M. Byers, MD; Oscar M. Guillamondegui, MD; Pat Wolf; Helmuth Goepfert, MD
Arch Otolaryngol Head Neck Surg. 1991;117(11):1251-1256. doi:10.1001/archotol.1991.01870230067009.
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• We performed a retrospective review of 178 previously untreated patients with primary malignant neoplasms of the parotid gland treated at our institution between 1960 and 1985. Patients were followed up for a median of 7.5 years. Fifty-nine percent underwent surgery alone, and 40% underwent surgery and radiation therapy. Univariate and multivariate analyses established the prognostic influence of cancer stage, cancer grade, histologic type, presence of lymphatic invasion, perineural invasion, tumor size, extension beyond the parotid gland fascia, cervical adenopathy, quality of margins, and patient age and gender. Survival was influenced most by tumor grade, tumor size, presence of positive cervical lymph nodes, and facial nerve invasion. The risk of local-regional recurrence was most affected by cervical adenopathy and tumor size. Distant metastases were predicted by tumor grade and size. At last contact, 39% of patients were alive and free of disease, while 26% had died of the disease. We analyzed the optimal surgical procedure and the rationale for the selection of combined treatment.

(Arch Otolaryngol Head Neck Surg. 1991;117:1251-1256)


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