embryonal rhabdomyosarcoma, embryonal rhabdosarcoma - form of rhabdomyosarcoma occurring mainly in infants and children

alveolar rhabdomyosarcoma, alveolar rhabdosarcoma - form of rhabdomyosarcoma occuring mainly in adolescents and young adults

pleomorphic rhabdomyosarcoma, pleomorphic rhabdosarcoma - form of rhabdomyosarcoma that affects limb muscles of older adults

sarcoma - a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer