Multicentric telangiectatic osteosarcoma.

A rare case of multicentric telangiectatic osteosarcoma in a 29-year-old woman is described. A plain X-ray showed a pure osteolytic lesion of the navicular, cuboid and I, II, III cuneiform bones. On magnetic resonance images, a T1-weighted image showed heterogeneous low signal intensity. A T2-weighted image showed heterogeneous high signal change with multicentric cystic foci and fluid-fluid levels. Histologically, the lesion showed typical telangiectatic osteosarcoma with numerous atypical giant cells.