The miR-17-92 cluster (miR17-5p, miR-18, miR-19a, miR-19b, miR-20a and miR-92a), located in an intron of MIR17HG [miR-17-92 cluster host gene (non-protein coding)] on chromosome 13 (13q31.3), is overexpressed in lung cancers, especially with the most aggressive SCLC [31]. The gene discussed is MIR17HG; the disease is small cell lung carcinoma.