Any familial rhabdoid tumor in which the cause of the disease is a mutation in the SMARCB1 gene. The disease is rhabdoid tumor predisposition syndrome 1 (MONDO_0012252, a Monarch Disease Ontology id). Also known as: SMARCB1 familial rhabdoid tumor, SMARCB1 familial rhabdoid tumour, familial rhabdoid tumor caused by mutation in SMARCB1, familial rhabdoid tumour caused by mutation in SMARCB1, rhabdoid tumor predisposition syndrome type 1, rhabdoid tumors, somatic, rhabdoid tumour predisposition syndrome type 1.