Myxosarcoma of the maxilla - a case report.

Myxosarcoma is a rare malignant neoplasm of connective tissue which is characterized by tissue that resembles primitive mesenchyme, and contains relatively undifferentiated cells that show rapid growth and invasion. The cells are stellate or spindle-shaped and are present in a loose matrix which contains mucoid material, reticulum, and collagen fibers. This paper reports a rare case of a myxosarcoma of the left maxilla in a 50-year-old male, which clinically presented as a soft-tissue mass on the buccal gingiva and radiographically showed a mixed radiolucent-radiopaque appearance.