ALDH	Aldehyde Dehydrogenase
ARMS	Alveolar rhabdomyosarcoma
COG	Children’s Oncology Group
CSC	Cancer stem cells
CYP	Cytochrome P450
CWS	Cooperative Weichteilsarkomen Studie
DME	Drug-metabolising enzymes
EFS	Event-free Survival
EpSSG	European Paediatric Soft Tissue Sarcoma Study Group
ERMS	Embryonal rhabdomyosarcoma
FNRMS	Fusion-positive rhabdomyosarcoma
FPRMS	Fusion-negative rhabdomyosarcoma
IRSG	Intergroup Rhabdomyosarcoma Study Group
IVA	Ifosfamide + vincristine + actinomycin D
PRMS	Pleomorphic rhabdomyosarcoma
RMS	Rhabdomyosarcoma
SIOP-MMT	International Society of Paediatric Oncology–Malignant Mesenchymal Tumour Committee
STS	Soft tissue sarcoma
STSC	Soft Tissue Sarcoma Committee
TME	Tumour microenvironment
VAC	Vincristine + actinomycin D + cyclophosphamide