sarcoma botryoides A malignancy of the cervix, vagina, or bladder in infants and young children that arises from embryonal rhabdomyoblasts (ancestral muscle cells). The tumor resembles a bunch of grapes. It has a generally good prognosis. Treatment includes conservative surgery followed by chemotherapy. Also known as embryonal rhabdomyosarcoma. See also rhabdomyosarcoma; sarcoma; sarcoma, soft-tissue.
