Atypical teratoid/rhabdoid tumor (AT/RT) of the CNS is an extremely rare and aggressive tumor of early childhood. The poor outcome with conventional infant brain tumor therapy has resulted in a lack of clear treatment guidelines. A registry has been established to create an outcomes database and to facilitate biology studies for this tumor.
Department of Pediatric Hematology/Oncology, The Children's Hospital, The Cleveland Clinic, 9500 Euclid Avenue, Desk S20, Cleveland, OH 44195, USA. hildenj@ccf.org