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Prognostic factors of palatal mucoepidermoid carcinoma: a retrospective analysis based on a double-center study.

Prognostic factors of palatal mucoepidermoid carcinoma: a retrospective analysis based on a double-center study.
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Xu W, Wang Y, Qi X, Xie J, Wei Z, Yin X, Wang Z, Meng J, Han W,


Xu W, Wang Y, Qi X, Xie J, Wei Z, Yin X, Wang Z, Meng J, Han W, (click to view)

Xu W, Wang Y, Qi X, Xie J, Wei Z, Yin X, Wang Z, Meng J, Han W,

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Scientific reports 2017 03 067() 43907 doi 10.1038/srep43907
Abstract

Mucoepidermoid carcinoma (MEC) of the palate is a common malignancy of minor salivary glands. This study was designed to identify the prognostic factors for MEC of the palate. The medical records of patients diagnosed with MEC of the palate who visited the Department of Oral and Maxillofacial Surgery at Nanjing Stomatological Hospital and the Department of Stomatology at Central Hospital of Xuzhou were retrospectively studied. The prognostic factors were determined using a Cox proportional hazards model. Furthermore, the expression of cancer stem cell (CSC) markers CD44, CD133, Nanog and Sox2 were detected in neoplastic samples of these patients by immunohistochemistry. As a result, both univariate analysis and multivariate analysis proved a high histological grade and an advanced tumor stage as negative prognostic factors for overall survival. By immunohistochemistry staining and survival analysis, a combination of CD44/CD133/SOX2 was found to have the strongest prognostic value for palatal MEC patients. In conclusion, the proposed nomogram which include histological grade and tumor stage along with cancer stem cell markers provides a more accurate long-term prediction for palatal MEC patients.

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