SMARCA1 and neuroendocrine neoplasm: Genes of the SWI/SNF complex were also found to be mutated in more than 20% of neuroendocrine tumors of the lung, including genes of the ARID1 family, BCL11A, SMARCA1, SMARCA2, SMARCA4, SMARCB1, and SMARCC2 [24, 25].