Osteosarcoma as a primary bone tumor in the adult foot: A case report

Abstract

A 50-year-old male presented with left hallux pain and swelling that was treated for infection. Initial imaging studies were inconclusive, but further evaluation led to a diagnosis of high-grade primary osteosarcoma. Despite surgery and chemotherapy, the disease progressed rapidly, and 7 months after toe amputation multiple lung metastases were discovered. The patient died 15 months after diagnosis. Foot osteosarcomas are extremely rare malignant neoplasms that are often misdiagnosed, resulting in delayed or inappropriate treatment. It is imperative to maintain a high index of suspicion of any destructive bone lesions in the foot, regardless of size and symptom severity.

Keywords

• Bone
• Hallux
• Malignancy
• Neoplasm
• Osteosarcoma
• Primary tumor