Survival Outcomes in T4aN0M0 Mandibular Gingival Squamous Cell Carcinoma Treated with Surgery Alone.

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Survival Outcomes in T4aN0M0 Mandibular Gingival Squamous Cell Carcinoma Treated with Surgery Alone.

Otolaryngol Head Neck Surg. 2019 Jan 01;:194599818821892

Authors: Nassiri AM, Campbell BR, Mannion K, Sinard RJ, Netterville JL, Rohde SL

Abstract
OBJECTIVES: To measure disease-free, disease-specific, and overall survival among patients with T4aN0M0 mandibular gingival squamous cell carcinoma who were treated with surgery alone.
STUDY DESIGN: Case series with chart review.
SETTING: Tertiary care center.
SUBJECTS AND METHODS: A retrospective chart review was performed of all adult patients treated surgically with an oral cavity composite resection between January 2005 and March 2017. Among other data, patient preoperative characteristics were recorded (eg, age, sex, smoking history, alcohol use, and clinical stage); operative notes were reviewed to determine tumor subsite involvement, reconstruction method, and intraoperative surgical complications; and pathology reports were evaluated for various pathologic findings. Survival outcomes were determined with Kaplan-Meier analysis.
RESULTS: The mean follow-up was 18.5 months (range, 0.1-100). The 1- and 5-year disease-free survival rates were 90.5% and 84.5%, respectively, while the 1- and 5-year disease-specific survival rates were 87.8% and 81.9%. The 1- and 5-year overall survival rates were 86.4% and 80.6%.
CONCLUSIONS: Patients with T4aN0M0 squamous cell carcinoma of the mandibular gingiva treated with surgery alone have a 5-year overall survival of 80.6%. Treatment with surgery alone obviates morbidities associated with adjuvant therapy while upholding survival outcomes.

PMID: 30598048 [PubMed - as supplied by publisher]

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