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Radiographic Descriptors of Bone Tumours

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mikedebi's version from 2015-11-01 13:53

Section

Question Answer
Multiple Myelomapunched out lesions (same size), raindrop skull, vertebra plana, gross osteoporosis
Osteosarcomacumulus, sunburst, metaphyseal, eccentric, ill defined, shoulders/knees (75%)
Chondrosarcomaround, ill defined radiolucencies, metaphyseal or diaphyseal, popcorn matrix, spiculated periosteal response
Ewing's Sarcomalong or flat bones, saucerization of cortex, diaphyseal, no soft tissue mass, mimics osteomyelitis
Fibrosarcomapain over long time (wide zone of transition), tibia/fibula (50%), metaphyseal, moth-eaten, cortical destruction
Non-Hodgkins Lymphomaminimal periosteal response, permeative medullary destruction, patient appears well despite size of lesion
Giant Cell Tumourpainful, radiolucent, eccentric, metaphyseal, significantly expansile and soap bubbly, MUST biopsy to determine malignancy
Only malignant tumours <30yOsteosarcoma (10-25); Ewing's Sarcoma (0-20)
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