Congenital multifocal rhabdoid tumor: a case with peculiar biological behavior and different response to treatment according to location (central nervous system and kidney).

Atypical teratoid/rhabdoid tumor (AT/RT) of the central nervous system and malignant rhabdoid tumor of the kidney (MRTK) may present with different responses to chemotherapy and outcomes. We describe the case of an infant with multifocal rhabdoid tumor with different behavior and response to treatment, depending on the anatomic site.