Abstract
INTRODUCTION: Osteosarcoma is a malignant mesenchymal neoplasm in which the tumor cells produce defective and immature bone (osteoid). The risk factors for developing the disease include: Patients with hereditary retinoblastoma and germline mutations of the p53 tumor suppressor gene. CASE REPORT: A 32-year old male presented with pain and swelling of the left thigh of 9 months duration. The pain was progressive, excruciating, worse at night, and unresponsive to paracetamol with moderate weight loss. He had sought treatment from a traditional bonesetter 6 months before presentation and had no improvement of the symptoms. CONCLUSION: In medullary osteosarcoma of the femur, where there is extracomparmental disease with no distant metastasis, clinically and radiologically, radical tumor resection with a free oncological margin increases survival of the patient up to 7 years.