Secondary chondrosarcoma from a solitary osteochondroma of the fibula head: a case report

Introduction Osteochondromas are the most common primary, benign tumors of the bone. They account for nearly 35% of all primary benign bone tumors [1,2]. Osteochondroma is a disease of the young and usually presents during the second and third decades of life. Malignant transformation is considered as a serious complication of an osteochondroma. Less than 1% of all osteochondromas undergo malignant transformation into secondary chondrosarcoma and literature reporting such cases is rare. In fact, no such cases have been reported in Sri Lanka. In this report, we discuss the surgical management and outcome of chondrosarcoma secondary to osteochondroma of the proximal fibula.