There are subtypes of SCLC with expression of ASCL1 (Achaete-Scute Family BHLH Transcription Factor 1), NEUROD1 (Neuronal Differentiation 1), POU2F3 (POU Class 2 Homeobox 3), and YAP1 (Yes1 Associated Transcriptional Regulator) [6,7]. The gene discussed is ASCL1; the disease is small cell lung carcinoma.