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skeletal1

H skeletal 1

QuestionAnswer
bone island AKA enostoma
where are bone islands never located skull
what type of tumor is enostoma benign
may have brush borders enostoma
small lesion with a nidus <1cm in size osteoid osteoma
painful benign lesion osteoid osteoma
what age does osteoid osteoma affect < 25
benign lesion rare outside the skull osteoma
gardner's syndrome osteoma
what is garder's triad multiple osteomas, colonic polyps, soft tissue fibromas
m/c benign tumor of the spine hemangioma
corduroy cloth appearance hemangioma
spoked wheel appearance in skull hemangioma
pseudohemangiomatous appearance hemangioma
what type of tumor is hemangioma benign
what type of tumor is osteoma benign
non hereditary HME osteochondromatosis
what causes bayonet deformity HME
average number of lesions in HME 10
what type of tumor is HME benign
cauliflower appearance solitary osteochondroma
m/c benign tumor of skeleton solitary osteochondroma
two types of osteochondroma sessile and pedunculated
appearance of sessile flat and broad
appearance of pedunculated stalk
m/c area for solitary osteochondroma metaphysis
lesion has cartilage cap solitary osteochondroma
pain at night 65 % of the time osteoid osteoma
may cause sclerotic pedicle osteoid osteoma
m/c in neural arch of thoracolumbar spine osteoblastoma
nidus which is > 1 cm osteoblastoma
pain at night not relieved with aspirin osteoblastoma
m/c benign tumor of hands and feet solitary enchondroma
50% of lesions have punctate calcifications solitary enchondroma
ollier's disease multiple enchondromas
multiple enchondromas with soft tissue hemangiomas maffucci's syndrome
codman's tumor AKA chondroblastoma
m/c patellar neoplasm chondroblastoma
age range for chondroblastoma 10-25
rare tumor that occurs mostly in knee region chondromyxoid fibroma
two types of fibrous xanthomas of bone non-ossifying fibroma and fibrous cortical defect
m/c in long bones of lower extremities fibrous xanthomas
appearance of NOF geographic, soap bubbly lesion
fallen fragment sign floating bone
fallen fragment sign appear in what condition simple bone cyst
location for simple bone cysts 50% proximal humerus and 25% in proximal femur
benign tumor that looks aggressive aneurysmal bone cyst
expansile lesion aneurysmal bone cyst
may have buttressing at their margins aneurysmal bone cyst
blow out lesion aneurysmal bone cyst
found in calcanus simple bone cyst
m/c benign tumor of sacrum giant cell tumor
lesion starts growing in metaphysis and extends to epiphysis giant cell tumor
what percentage of giant cell tumors found in radius are malignant 99
raindrop skull multiple myeloma
punched out lesions multiple myeloma
m/c primary malgnant bone tumor multiple myeloma
age range for multiple myeloma 50 -70
red marrow usually involved causing anemia multiple myeloma
wrinkled vertebra multiple myeloma
vertebra plana multiple myeloma
prognosis for multiple mueloma poor - most die within 3 years
solitary form of multiple myeloma solitary plasmacytoma
hematogenous metastasis to lungs - canon ball metastasis osteosarcoma
second m/c primary malignant tumor of bone osteosarcoma
types of osteosarcoma central, multicentric, parosteal, and secondary
whtat type of tumor is giant cell quasimalignant
what % of osteosarcoma metastasize to bone 75
large soft tissue mass is associated with this type of tumor osteosarcoma
m/c appearance of osteosarcoma 50% sclerotic
m/c malignant bone tumor of hands, sternum and scapula chondrosarcoma
has lucent broken ring chondrosarcoma
groomed whisker appearance ewings sarcoma
onion skin ewings sarcoma
resembles acute osteomyelitis radiographicaly and clinicaly ewings sarcoma
if appears as a primary tumor but unsure of type of lesion - think fibrosarcoma lichtensteins rule
malignant form of fibrosarcoma fibrous dysplasia
ivory vertebra with anterior skeleton hodgkin's lymphoma
round cell tumor hodgkins lymphoma
permeative agrresive lesion non-hodgkins
AKA reticulum cell sarcoma non-hodgkins lymphoma
non-hodgkins is most common location knee
the only primary maligna t tumor that crosses joint or disc phase chordomas
usually occurs in the sacrum 85% chordoma
cafe au lati lesions firbrous dysplasia and neurofibramatosis
which patholgy have lion faces fibrous dysplasia and pagets
expansile lesions in maxillary bone cherubism
cherubism fibrous dysplasia
shepherds crook fibrous dysplasia and pagets
focal gigantism fibrous dysplasia
ground glass appearance fibrous dysplasia
rind sign fibrous dysplasia
m/c area for fibrous dysplasia intertrochanteric region of femur
cotton wool skull pagets
osteoporosis circumstricta pagets
picture frame vertebra pagets
blade of grass pagets
saber shin pagets
wheat of what pagets
accentuation of femoral neck trabeculae pagets
blind vertebra lytic metastasis
m/c malignant tumor of skeleton metastasis
m/c metastasis type lytic
percentage of lytic metastasis 75
where does the lung metastasize to hands and feet
usual route of metastisis hematogenous
acral metastasis metastasis to knees and elbows
arthritis of costovertebral joints Tom Smith
widening of tear drop distance waldenstrums sign
normal distance of tear drop 2mm side to side and 8mm medially
m/c agent for septic arthritis staph aureus
mainliners syndrome pseudomonas infection
bony colar involucrum
central necrotic bone sequestrum
pseudomonas affects which joints S joints - SI, spine, sternoclavicular, symphysis pubis
brodies abcess osteomyelitis
resembles osteoid osteoma clinicaly and radiologicaly osteomyelitis
latent period for osteomyelitis for extremities 10 days
latent period for osteomyelitis for spine 3 weeks
m/c area for osteomyelitis femur
pus forming infection suppurative osteomyelitis
granulomatous infection non-suppurative osteomyelitis
bony erosions with soft tissue swelling acute osteomyelitis
complication of squamus cell carcinoma marjolin's ulcer
Created by: hakrrins on 2008-08-21



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