SMARCB1 and atypical teratoid rhabdoid tumor: Furthermore, we did not observe increased expression levels of FGFR1 or FGFR2 in the atypical teratoid/rhabdoid tumor (AT/RT) cell line BT16 (data not shown), indicating that the correlation of SNF5-deficiency and elevated expression of FGFRs might be true only for non-CNS rhabdoid tumors.