NCIt definition : An autosomal dominant-inherited neoplastic predisposition syndrome caused by mutation(s)
in the SMARCB1 or SMARCA4 genes. It is characterized by the development of atypical
teratoid/rhabdoid tumors in infancy and early childhood. This highly aggressive tumor
develops in the central nervous system as an isolated lesion or in combination with
extrarenal or renal rhabdoid tumor. Patients may also develop other central nervous
system malignancies including medulloblastoma, supratentorial primitive neuroectodermal
tumor, and choroid plexus carcinoma.;