Osteosarcoma — Diagnosis & Treatment
Most common primary malignant bone tumor in adolescents (after myeloma overall). Sites: metaphysis of long bones—distal femur, proximal tibia, proximal humerus. X‑ray: sunburst periosteal reaction, Codman triangle, mixed lytic–sclerotic lesion. Work‑up: MRI for local staging, CT chest for metastasis, bone scan for skip lesions. Treatment: neoadjuvant chemotherapy → wide resection/limb salvage/rotationplasty → adjuvant chemotherapy.
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4Practised by MCQ
10What is the most common site for osteosarcoma?
mcqWhich imaging finding is characteristic of osteosarcoma?
mcqWhich of the following is NOT a risk factor for developing osteosarcoma?
mcqWhat is the primary treatment modality for localized osteosarcoma?
mcqWhich of the following statements about telangiectatic osteosarcoma is true?
mcqWhat is the typical age group for the primary peak incidence of osteosarcoma?
mcqWhich feature is characteristic of parosteal osteosarcoma?
mcqWhat is the primary goal of neoadjuvant chemotherapy in osteosarcoma treatment?
mcqWhat is the 5-year survival rate for localized conventional osteosarcoma?
mcqWhich of the following is a common symptom of osteosarcoma?