Background: Carcinoma of the gingivobuccal complex is commonly associated with the use of smokeless tobacco known as "quid."
Methods: We conducted a retrospective chart review of 511 patients with advanced cancer of gingivobuccal complex surgically treated during 1994 to 1995. We evaluated patterns of disease failure in these patients and correlated disease-free survival with various prognostic factors.
Results: During a median follow-up of 46 months, 159 locoregional recurrences and 11 distant metastases were detected in 148 patients. Seventy-nine percent of the recurrences appeared within 18 months of surgery, and the median survival for patients with recurrent disease was less than 4 months. Two-year and 5-year disease-free survival rates were 64% and 57%, respectively. On multivariate analysis, disease-free survival showed significant correlation with skin involvement and extracapsular spread.
Conclusions: Gingivobuccal cancers usually fail locoregionally. Soft tissue infiltration and extracapsular spread of nodal disease influence disease-free survival.
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