Abstract：Objective To investigate the clinical features and survival status of mucosal melanoma of the nasal cavity and paranasal sinuses and to analyze the prognostic factors. Methods A retrospective analysis was performed on the clinical data of 94 patients with mucosal melanoma of the nasal cavity and paranasal sinuses treated from January 2000 to December 2012. Of the 94 patients, 50 were male, and 44 were female. The median age of onset was 60 years (range, 26-85 years). The primary sites were nasal cavity (86 patients), maxillary sinus (7 patients), and nasopharynx (1 patient). Cervical lymph node metastasis was observed in 10 patients (7 patients before treatment, 2 patients during treatment, and 1 patient after treatment).No patient had distant metastasis.Patients were treated with surgery ± radiotherapy. The Kaplan-Meier method was used to calculate survival rates, and the logrank test was used for univariate prognostic analysis;the Cox regression model was used for multivariate prognostic analysis. Results The 1-, 3-, and 5-year sample sizes were 80, 54, and 50, respectively. The 1-, 3-, and 5-year disease-related survival rates were 71%, 33%, and 22%, respectively. Univariate analysis showed that the prognostic factors were age over 55 years (P=0.034), involvement of the posterior naris (P=0.011), involvement of the maxillary sinus (P=0.009), involvement of the hard palate (P=0.003), cervical lymph node metastasis (P=0.001), and therapeutic method (P=0.038). Multivariate analysis showed that the prognostic factors were involvement of the posterior naris (P=0.027), involvement of the orbit (P=0.005), and involvement of the hard palate (P=0.003). Conclusions The distant metastasis and local recurrence rates are high among patients with mucosal melanoma of the nasal cavity and paranasal sinuses, so combination therapy is imperative. Cervical lymph node metastasis rate is low. Rational clinical staging needs to be further explored.
Yuan Wei,Wang Weifang,Wang Shengzi et al. Characteristics and prognosis of primary mucosal melanoma of nasal cavity and paranasal sinuses:a clinical analysis of 94 patients[J]. Chinese Journal of Radiation Oncology, 2014, 23(5): 406-408.
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2014, Vol. 23 
