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There is growing evidence that molecular testing is feasible on all types of cytological preparation, which is fortunate as more diagnostic markers and biomarkers for targeted therapies are discovered for use in pulmonary and pleural malignancies. In this article we will discuss the pre-analytic, analytic, and post-analytic (interpretive) considerations for successful implementation of molecular tests for diagnostic and predictive markers in respiratory and pleural cytology. The vast majority of laboratories are familiar with, and have validated their molecular protocols for, formalin-fixed paraffin-embedded surgical specimens, which are not directly applicable to cytology specimens. Thus, rigorous validation must be performed for each type of fixative and cytology preparation before it is implemented in the clinical setting. © 2021 John Wiley & Sons Ltd.


Fang Zhou, Elaine Shum, Andre L Moreira. Molecular cytology of the respiratory tract and pleura. Cytopathology : official journal of the British Society for Clinical Cytology. 2022 Jan;33(1):14-22

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PMID: 34333812

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