Proximal Tibia Osteosarcoma Presenting Late: A Case Report

Osteosarcoma is a malignant tumor that primarily affects the long bones but can also involve other bones in the body. The age at presentation ranges from 15 to 25 years of age and predominantly affect males. In this paper we present a 25 years old male patient presenting with a 2 years history of pain and swelling around left knee with aggressive growth of tumor leading to restricted mobility and pathological fracture in left tibia with severe emaciation. He presented late to our hospital, 6 months after noticing wound over the left knee. Diagnosis of tumor is important especially in early stage for improving prognosis.