MRI Magnetic Resonance Imaging
CT Computer Tomography
PCR Polymerase Chain Reaction
FISH Fluorescent In Situ Hybridization
FNCLCC FédérationNationaledes Centres de LutteContre Le Cancer
PNET Primary Neuroectodermal Tumors
SIOP Society of Pediatric Oncology
RMS Rhabdomyosarcoma