INTRODUCTION
heterogeneous disease, SCLC, Small‐cell lung cancer, malignant neuroendocrine tumor
LUNG CANCERS, MALIGNANT NEUROENDOCRINE TUMOR, SCLC
Small‐cell lung cancer (SCLC) is a malignant neuroendocrine tumor accounting for about 15%–20% of all types of lung cancers.Recent studies have shown that SCLC is a heterogeneous disease based on transcription factor typing,In this real‐world study, we retrospectively investigated survival information, pre‐treatment inflammatory markers and other clinicopathological characteristics of 612 SCLC cases from northeast China. By collecting indicators that may be associated with SCLC, we developed two nomograms for predicting the OS and PFS of SCLC patients. Inflammatory markers that are clinically feasible and convenient to distinguish were determined to predict the prognosis of SCLC patients. The research may provide clues for individual treatment of SCLC patients.