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12 Cards in this Set
- Front
- Back
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Most common malignant primary bone tumor
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Osteosarcoma
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Age group for osteosarcoma
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<30 years
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Subtype of osteosarcoma that grows outside the bone
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Parosteal osteosarcoma
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DDX for permeative bone lesions
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Round cell tumors:
- Multiple myeloma - Primary lymphoma of bone - Ewin's sarcoma - Metastatic neuroblastoma |
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Three appearances of periostitis in Ewing's sarcoma
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- Onion skinned
- Sunburst - Amorphous |
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Age group for chondrosarcoma
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>40 years
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Aggressive lesion with amorphous, snowflake calcifications in an older patient?
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Chondrosarcoma
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What lesion is similar to a fibrosarcoma, but more common?
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MFH (Malignant fibrous histiocytoma)
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Benign metaplasia of the synovium leading to multiple calcific loose bodies in a joint?
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Synovial osteochondromatosis
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What is the "mini-brain" lesion in a vertebral body?
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A plasmacytoma
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What is unique about UBC's in the calcaneus?
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They should not be treated with packing as in other locations (no undue stress in the anterior portion of calcaneus)
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Lytic lesion lateral femoral neck from synovial herniation?
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Pitt's pit
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