Parosteal osteosarcoma with focal fatty metaplasia: A case report

Abstract

Parosteal osteosarcoma originates on the surface of long bones. The juxtacortical variety is one of the most common ones and accounts for about 5% of all osteosarcomas. We report the case of a 34-year-old female patient with a rare variant of parosteal osteosarcoma. Because of the less aggressive biological behavior, it is important to know it, in order to recognize and differentiate it from benign osseous lesions. Keywords: Parosteal osteosarcoma, Fatty metaplasia, Surface osteosarcoma