This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Soft Tissue Sarcomas, Subject name: Pediatrics
MC sarcoma in infancy is - 
Select and explain. 
A. Leiomyosarcoma, B. Ewing's sarcom, C. Rhabdomyosarcoma, D. Osteosarcoma
C: Rhabdomyosarcoma
Answer: C: Rhabdomyosarcoma 
Explanation: 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