Extraskeletal myxoid chondrosarcoma of the leg in a child: A case report.

Rationale: Extraskeletal myxoid chondrosarcoma is a slow-growing soft tissue tumor of adults with a propensity for local recurrence and eventual metastasis. Only 17 pediatric and adolescent cases have been reported.

Patient Concerns: Here we present an 11-year-old boy with a 3-year history of a slowly growing painless left leg mass.