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PD-L1 expression in 117 sinonasal mucosal melanomas and its association with clinical outcome.

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收录情况： ◇ SCIE

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机构： [1]Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China [2]Department of Pathology, Beijing Chuiyangliu Hospital, Beijing 100022, China

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关键词： Sinonasal mucosal melanoma PD-L1 Prognosis

摘要：

Sinonasal mucosal melanoma (SNMM) is a rare tumour with a poor prognosis. The purpose of this study was to identify independent predictors of outcome in SNMM and to examine the expression of PD-L1 and the relationship between expression and clinicopathological characteristics.A total of 117 patients with SNMM were reviewed in the Department of Pathology of Beijing Tongren Hospital (115 cases) and Beijing Chuiyangliu Hospital (2 cases) from June 2007 to June 2018. We evaluated the expression of PD-L1 in SNMM and investigated whether there was an association between the expression of the marker and clinicopathological characteristics.Sex, age, side, location, size, histological type, melanin particles, nuclear fission and tumour infiltrating lymphocytes (TILs) were not significantly related to survival. The median survival times at the T3, T4a, and T4b stages were 23, 19, and 6 months, respectively. The difference between overall survival (OS) and AJCC stages was statistically significant. The tumour cells (TCs) were PD-L1 positive in 14/117 (12.0%) cases, and tumour-associated immune cells (ICs) were PD-L1 positive in 23/117 (19.7%) cases. A statistically significant correlation was observed between the positive expression rate of PD-L1 in ICs and TILs grading; however, there was no significant correlation between the positive expression rate of PD-L1 in TCs and TILs grading.The AJCC stages were the only independent predictors of survival. There was no correlation between the positive expression rate of PD-L1 and OS. A statistically significant correlation was observed between the positive expression rate of PD-L1 in ICs and TILs grading.Copyright © 2022 Elsevier Inc. All rights reserved.

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出版当年[2021]版：

大类 | 4 区医学

小类 | 4 区病理学

最新[2023]版：

大类 | 4 区医学

小类 | 4 区病理学

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出版当年[2020]版：

Q3 PATHOLOGY

最新[2023]版：

Q3 PATHOLOGY

影响因子： 1.5 最新[2023版] 1.6 最新五年平均 2.09 出版当年[2020版] 2.276 出版当年五年平均 1.877 出版前一年[2019版] 2.134 出版后一年[2021版]

第一作者：

第一作者机构： [1]Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China [2]Department of Pathology, Beijing Chuiyangliu Hospital, Beijing 100022, China

通讯作者：

通讯机构： [1]Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China [*1]Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.

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