Capillary telangiectatic osteosarcoma misdiagnosed as aneurysmal bone cyst in a 12-year-old girl: A case report

This case underscores the necessity for clinicians to maintain a high index of suspicion for TOS when evaluating aggressive bone lesions, particularly in pediatric patients. The importance of comprehensive pathological assessment, including immunohistochemistry and molecular analysis, cannot be overstated, as early and accurate diagnosis significantly influences treatment outcomes and prognosis.