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- W1998224720 abstract "This study aimed to explore the association between adenocarcinoma-related morphological and molecular characteristics and EGFR mutations in Chinese lung adenocarcinomas. A total of 139 consecutively resected pulmonary adenocarcinoma patients were screened for EGFR mutations by the amplification refractory mutation system assay. For the resected specimens, histologic subtypes were sub-classified using either the 2004 WHO classification or the 2011 IASLC/ATS/ERS classification. Meanwhile, TITF-1 (thyroid transcription factor 1) and SP-A (surfactant-associated protein A) immunohistochemistry staining was also detected. The results were correlated with EGFR mutations and clinicopathological features mentioned above. Both sub-classification methods reflected differences in frequencies of EGFR mutations in lung adenocarcinoma subtypes. In summary, mixed non-mucinous bronchioloalveolar carcinoma (BAC) or papillary components and papillary predominant adenocarcinoma showed a higher frequency of EGFR mutations than mucinous BAC components; Also, EGFR mutations were significantly more common in tumors with TITF-1 or SP-A expressions than in those without (p=0.002, p=0.026), especially the sensitivity of TITF-1 (96.9%) and the negative predictive value of TITF-1 (88.2%). Our data further showed significant genotype-phenotype correlations between EGFR mutations and adenocarcinoma-related morphological and molecular characteristics, and patients with special histologic and IHC staining features might have higher EGFR mutation rates. In addition, this study, for the first time, indicated the significant relationship between SPA IHC and EGFR mutations, which needed confirmation by further research." @default.
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- W1998224720 date "2014-03-01" @default.
- W1998224720 modified "2023-10-16" @default.
- W1998224720 title "Genotype–phenotype correlation in Chinese patients with pulmonary mixed type adenocarcinoma: Relationship between histologic subtypes, TITF-1/SP-A expressions and EGFR mutations" @default.
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- W1998224720 doi "https://doi.org/10.1016/j.prp.2013.11.013" @default.
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