Clear cell sarcoma of tendons and aponeuroses (malignant melanoma of soft parts) with unusual roentgenologic findings. Case report.

Clear cell sarcoma of tendons and aponeuroses (malignant melanoma of soft parts) with bone invasion of the proximal tibia occurred in a 15-year-old boy. The tumor arose from the juxtacortical region and invaded the tibia. Bone involvement in this tumor is rare.