Survival Rates According to Tumour Location in Patients With Surgically Treated Oral and Oropharyngeal Squamous Cell Carcinoma.

Background/aim: We evaluated survival rates in surgically-treated oral and oropharyngeal squamous cell carcinoma patients at our clinic, and determined whether survival differed by tumour locations.
Patients and Methods: In a retrospective study, tumour lesions in 1,486 patients were categorized into 6 groups according to tumour location. Patients' age, sex, tumour-node-metastasis classification, resection status, 5-year and disease-specific survival rates were statistically analysed between groups.
Results: A significantly inferior disease-specific and lower 5-year survival rates for tumours located at the base of the tongue and oropharynx, and maxilla, due to higher T-stage and incomplete resection status were shown. Cervical lymph node metastasis and distant metastatic spread were more frequently observed with base of the tongue and oropharynx lesions.
Conclusion: Attentive inspection and precise clinical examinations of specific oral and oropharyngeal regions are crucial for early diagnosis and treatment. Oral and oropharyngeal tumour locations play important roles in disease prognosis.
(Copyright© 2019, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)