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• W2091200599 abstract "Procalcitonin (PCT) is widely used for the diagnosis of bacterial infections. The aim of this study was to evaluate PCT as a tumor and as a prognostic marker in patients with primary lung cancer. We retrospectively performed a PCT dosage in the frozen serum samples of 147 patients with pulmonary neoplasia for whom a test of neuron-specific enolase (NSE) had been conducted at the time of diagnosis. We show that a PCT serum level above 0.15 ng/mL was independently linked to the presence of a neuroendocrine component in the tumor (HR = 5.809 95% CI [1.695–19.908] p: 0005). Thus, median PCT serum levels were significantly more elevated in small-cell lung cancers than in pulmonary adenocarcinomas: 0.33 ng/mL versus 0.07 ng/mL (p < 0.001). However, the diagnostic value of serum PCT levels for diagnosing carcinoma with a neuroendocrine component remains low (sensitivity 63.8%; specificity 71.9%). In this series, serum PCT levels were significantly more elevated in the presence of liver metastases: 0.37 ng/mL versus 0.09 ng/mL in the absence of liver metastasis (p < 0.001). In uni- and multivariate analyses, a serum PCT level above 0.15 ng/mL and the presence of metastases and of sepsis at the time of diagnosis were independent factors of unfavorable prognosis. Serum PCT is elevated in patients with lung cancer with neuroendocrine component or with liver metastases. As a consequence, in this population, PCT has a poor specificity for bacterial infection. At diagnosis, an elevated serum PCT is an independent predictive factor of bad prognosis." @default.
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• W2091200599 date "2014-12-01" @default.
• W2091200599 modified "2023-10-14" @default.
• W2091200599 title "Diagnostic and prognostic value of serum procalcitonin concentrations in primary lung cancers" @default.
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• W2091200599 doi "https://doi.org/10.1016/j.clinbiochem.2014.09.002" @default.
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