ABSTRACT

Osteosarcoma is one of the most common primary malignant bone tumors, comprising approximately 20% of all primary bone malignancies. Conventional osteosarcoma is the most frequent type. Chondroblastic osteosarcoma is a subgroup of osteosarcoma. Chondroblastic osteosarcoma has similar clinical and radiological features to those of conventional osteosarcomas. We evaluted the clinical course of the two patient and the appearances of magnetic rezonance imaging (MRI) in light of the literature.