A giant congenital fibrosarcoma of the leg.

Congenital fibrosarcoma is a rare, malignant, soft-tissue tumor in infants and the pediatric age group. The clinical behavior of congenital fibrosarcoma is more favorable, and metastatic spread is rare, but local recurrence is a common problem. The patient was a 1-year-old girl at the time of operation, and there was a giant mass in the posterior region of the right leg. A wide surgical excision was performed and histological findings showed the diagnosis of congenital fibrosarcoma. After one and a half years, femoral supracondylar amputation was performed because of the recurrence of the local tumor.