<prompt> MC sarcoma in infancy is -LeiomyosarcomaEwings sarcomRhabdomyosarcomaOsteosarcoma  <response>: Ans. is c i.e., RhabdomyosarcomaRhabdomyosarcomao The most common soft tissue sarcoma in children is rhabdomyosarcoma.The common site of involvement are:o Head Neck 25 -Most commono Genitourinary 22 - 2nd most commono Extremitieso Retroperitoneum.o Rhabdomyosarcoma is the most common nonocular orbital tumor is young children and is most common urinary bladder malignancy in children 