YAP1, a transcriptional regulator in the Hippo signaling pathway, is suspected to be preferentially expressed in a subset of non‐NE SCLC as well [4, 14], although subsequent immunohistochemical (IHC) analyses failed to confirm a unique YAP1‐driven subtype in human tissue samples [12]. The gene discussed is YAP1; the disease is small cell lung carcinoma.