[A fibrosarcoma, occurring in infants and young children, sharing identical morphologic features with adult fibrosarcoma. The prognosis is generally much more favorable than for adult fibrosarcoma, and it rarely metastasizes. It usually affects the superficial and deep soft tissues of the extremities. The majority of infantile fibrosarcomas carry the t(12;15)(p13;q26) translocation. ( NCI )]
UMLS (NCI) C0334459