Lung Cancer Test Multi-target Detection of SHOX2, RASSF1A, and PTGER4 Methylation(PCR-Fluorescent Probe Method) CE-IVDD Lung Cancer: The World's #1 Cancer Killer. Lung cancer is the leading cause of cancer death worldwide. Proportion of Lung Cancer Among All New Cancer Cases Worldwide (2022) Proportion of Lung Cancer Among All Cancer-related Deaths Worldwide (2022)