H skeletal 1
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| bone island AKA | enostoma
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| where are bone islands never located | skull
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| what type of tumor is enostoma | benign
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| may have brush borders | enostoma
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| small lesion with a nidus <1cm in size | osteoid osteoma
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| painful benign lesion | osteoid osteoma
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| what age does osteoid osteoma affect | < 25
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| benign lesion rare outside the skull | osteoma
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| gardner's syndrome | osteoma
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| what is garder's triad | multiple osteomas, colonic polyps, soft tissue fibromas
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| m/c benign tumor of the spine | hemangioma
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| corduroy cloth appearance | hemangioma
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| spoked wheel appearance in skull | hemangioma
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| pseudohemangiomatous appearance | hemangioma
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| what type of tumor is hemangioma | benign
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| what type of tumor is osteoma | benign
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| non hereditary HME | osteochondromatosis
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| what causes bayonet deformity | HME
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| average number of lesions in HME | 10
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| what type of tumor is HME | benign
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| cauliflower appearance | solitary osteochondroma
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| m/c benign tumor of skeleton | solitary osteochondroma
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| two types of osteochondroma | sessile and pedunculated
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| appearance of sessile | flat and broad
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| appearance of pedunculated | stalk
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| m/c area for solitary osteochondroma | metaphysis
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| lesion has cartilage cap | solitary osteochondroma
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| pain at night 65 % of the time | osteoid osteoma
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| may cause sclerotic pedicle | osteoid osteoma
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| m/c in neural arch of thoracolumbar spine | osteoblastoma
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| nidus which is > 1 cm | osteoblastoma
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| pain at night not relieved with aspirin | osteoblastoma
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| m/c benign tumor of hands and feet | solitary enchondroma
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| 50% of lesions have punctate calcifications | solitary enchondroma
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| ollier's disease | multiple enchondromas
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| multiple enchondromas with soft tissue hemangiomas | maffucci's syndrome
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| codman's tumor AKA | chondroblastoma
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| m/c patellar neoplasm | chondroblastoma
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| age range for chondroblastoma | 10-25
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| rare tumor that occurs mostly in knee region | chondromyxoid fibroma
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| two types of fibrous xanthomas of bone | non-ossifying fibroma and fibrous cortical defect
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| m/c in long bones of lower extremities | fibrous xanthomas
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| appearance of NOF | geographic, soap bubbly lesion
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| fallen fragment sign | floating bone
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| fallen fragment sign appear in what condition | simple bone cyst
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| location for simple bone cysts | 50% proximal humerus and 25% in proximal femur
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| benign tumor that looks aggressive | aneurysmal bone cyst
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| expansile lesion | aneurysmal bone cyst
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| may have buttressing at their margins | aneurysmal bone cyst
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| blow out lesion | aneurysmal bone cyst
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| found in calcanus | simple bone cyst
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| m/c benign tumor of sacrum | giant cell tumor
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| lesion starts growing in metaphysis and extends to epiphysis | giant cell tumor
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| what percentage of giant cell tumors found in radius are malignant | 99
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| raindrop skull | multiple myeloma
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| punched out lesions | multiple myeloma
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| m/c primary malgnant bone tumor | multiple myeloma
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| age range for multiple myeloma | 50 -70
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| red marrow usually involved causing anemia | multiple myeloma
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| wrinkled vertebra | multiple myeloma
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| vertebra plana | multiple myeloma
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| prognosis for multiple mueloma | poor - most die within 3 years
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| solitary form of multiple myeloma | solitary plasmacytoma
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| hematogenous metastasis to lungs - canon ball metastasis | osteosarcoma
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| second m/c primary malignant tumor of bone | osteosarcoma
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| types of osteosarcoma | central, multicentric, parosteal, and secondary
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| whtat type of tumor is giant cell | quasimalignant
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| what % of osteosarcoma metastasize to bone | 75
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| large soft tissue mass is associated with this type of tumor | osteosarcoma
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| m/c appearance of osteosarcoma | 50% sclerotic
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| m/c malignant bone tumor of hands, sternum and scapula | chondrosarcoma
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| has lucent broken ring | chondrosarcoma
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| groomed whisker appearance | ewings sarcoma
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| onion skin | ewings sarcoma
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| resembles acute osteomyelitis radiographicaly and clinicaly | ewings sarcoma
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| if appears as a primary tumor but unsure of type of lesion - think fibrosarcoma | lichtensteins rule
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| malignant form of fibrosarcoma | fibrous dysplasia
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| ivory vertebra with anterior skeleton | hodgkin's lymphoma
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| round cell tumor | hodgkins lymphoma
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| permeative agrresive lesion | non-hodgkins
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| AKA reticulum cell sarcoma | non-hodgkins lymphoma
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| non-hodgkins is most common location | knee
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| the only primary maligna t tumor that crosses joint or disc phase | chordomas
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| usually occurs in the sacrum 85% | chordoma
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| cafe au lati lesions | firbrous dysplasia and neurofibramatosis
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| which patholgy have lion faces | fibrous dysplasia and pagets
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| expansile lesions in maxillary bone | cherubism
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| cherubism | fibrous dysplasia
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| shepherds crook | fibrous dysplasia and pagets
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| focal gigantism | fibrous dysplasia
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| ground glass appearance | fibrous dysplasia
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| rind sign | fibrous dysplasia
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| m/c area for fibrous dysplasia | intertrochanteric region of femur
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| cotton wool skull | pagets
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| osteoporosis circumstricta | pagets
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| picture frame vertebra | pagets
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| blade of grass | pagets
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| saber shin | pagets
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| wheat of what | pagets
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| accentuation of femoral neck trabeculae | pagets
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| blind vertebra | lytic metastasis
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| m/c malignant tumor of skeleton | metastasis
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| m/c metastasis type | lytic
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| percentage of lytic metastasis | 75
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| where does the lung metastasize to | hands and feet
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| usual route of metastisis | hematogenous
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| acral metastasis | metastasis to knees and elbows
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| arthritis of costovertebral joints | Tom Smith
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| widening of tear drop distance | waldenstrums sign
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| normal distance of tear drop | 2mm side to side and 8mm medially
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| m/c agent for septic arthritis | staph aureus
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| mainliners syndrome | pseudomonas infection
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| bony colar | involucrum
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| central necrotic bone | sequestrum
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| pseudomonas affects which joints | S joints - SI, spine, sternoclavicular, symphysis pubis
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| brodies abcess | osteomyelitis
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| resembles osteoid osteoma clinicaly and radiologicaly | osteomyelitis
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| latent period for osteomyelitis for extremities | 10 days
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| latent period for osteomyelitis for spine | 3 weeks
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| m/c area for osteomyelitis | femur
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| pus forming infection | suppurative osteomyelitis
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| granulomatous infection | non-suppurative osteomyelitis
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| bony erosions with soft tissue swelling | acute osteomyelitis
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| complication of squamus cell carcinoma | marjolin's ulcer
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Created by:
hakrrins
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