Case History: 18-year-old patient presents with complaints of swelling in left lower limb around and just above left knee. MRI was advised.Check out the slideshow for more information.
MRI showed a hyperintense heterogenous soft tissue mass on T2W and STIR images.
Heterogenous mass originating from left femur with marrow edema.
Heterogenous soft tissue mass originating from distal femur.
Hypointense mass originating in distal femur with marrow replacement.
Encasement of neurovascular bundle and tumor cross fascial planes.
Osteosarcomas are malignant bone forming tumors, and the second most common primary bone tumor after multiple myeloma.
Most osteosarcomas are intramedullary.
Osteosarcomas typically occur at the metadiaphysis of tubular bones in the appendicular skeleton.
Conventional radiography plays an important role in diagnosis. CT is used for assisting biopsies and staging.
MRI is proving to be essential for accurate local staging and assessment for limb sparing resection.
Cure, if achievable, requires aggressive surgical resection often with amputation followed by chemotherapy.
Differential diagnoses depend on the age of the patient.
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