Bone tumor morphology, connective tissue disease histology, and classic skin biopsy findings, one finding per card.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- Which bone tumor classically shows a Codman triangle on X-ray?
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Osteosarcoma- What X-ray pattern of periosteal new bone formation is classic for osteosarcoma?
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Sunburst pattern- Osteosarcoma most commonly arises in which part of a long bone?
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The metaphysis, often around the knee- What is the most common benign bone tumor?
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Osteochondroma- What small, painful bone lesion has a central nidus and improves with NSAIDs?
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Osteoid osteoma- A 'soap bubble' lytic lesion in the epiphysis near the knee suggests which tumor?
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Giant cell tumor of bone- What characteristic cell type gives giant cell tumor of bone its name?
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Multinucleated osteoclast-like giant cells- What periosteal reaction pattern on X-ray is classic for Ewing sarcoma?
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Onion-skin (lamellated) periosteal reaction- Ewing sarcoma is composed histologically of ____.
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small round blue cells- What chromosomal translocation is characteristic of Ewing sarcoma?
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t(11;22)- What is the malignant cartilage-forming bone tumor called?
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Chondrosarcoma- What benign tumor of hyaline cartilage arises within the medullary cavity, often in the hands?
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Enchondroma- What bone lesion shows a 'ground glass' appearance on X-ray?
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Fibrous dysplasia- In fibrous dysplasia, the woven bone trabeculae have a histologic pattern described as ____.
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Chinese letters- In SLE, concentric periarterial fibrosis in the spleen produces what classic finding?
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Onion-skin lesions
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