Abstract
Objective To study the prognostic factors in malignant melanoma of the oral mucosa.Methods The clinical and pathological data of 35 cases were analysed retrospectively.Results The five\|year survival rate was 45% in stage Ⅰ～Ⅱ and 6.7% in stage Ⅲ～Ⅳ(P0.01);38.9% in the non\|nodular melanoma and 14.3% in the nodular melanoma(P0.01);50% in those withinepithelium and 19.1% in those infringed submucosa(P0.01);66.7% in the positive of lymphatic metastasis and 22.2% in the negative(P0.01).Conclusion The prognosis of oral mucosa related with tumor stage,tumor type,depth of invasion and the treatment.
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