In contrast, SCLC patients displayed one of the following DLL3 expression patterns: H/H‐ high Exo‐mRNA and high tEV‐mProtein, H/L‐ high Exo‐mRNA and low tEV‐mProtein, or L/H‐ low Exo‐mRNA and high tEV‐mProtein. Here, DLL3 is linked to small cell lung carcinoma.