Introduction
NSCLC, tumor, tumors
NON-SMALL CELL LUNG CANCER, TUMOR, METASTASIS, PULMONARY METASTASIS, MALIGNANT TUMOR, NSCLC, PRIMARY TUMOR, TUMORS
Ipsilateral pulmonary metastasis (IPM), also known as separate or additional tumor nodule(s), is a form of intrapulmonary metastasis in non-small cell lung cancer (NSCLC), including tumors with additional nodule(s) in the same lobe (PM1) and tumors with additional nodule(s) in the ipsilateral different lobe (PM2) [Although the current AJCC staging system still relies on the location relationship between IPM and the primary tumor [Nomogram is a convenient and accurate method to predict survival outcomes, which has become very popular in malignant tumor survival prediction in recent years [