Boards Part 4 xray
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Pars fracture in lumbar spine. What part of "scotty dog" is fractured? | Neck
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Shenton's line indicative of? | femoral neck fracture, hip dislocation, slipped femoral capital epiphysis
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Associated with Down's syndrome | increased ADI space, absent transverse ligament
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RA | fusion of apophyseal joints, deformed spinous processes, decreased anterior to posterior diameter of the vertebral body
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Klippel-feil | low hairline, decreased range of cervical motion and short, webbed neck
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ossiculum terminale persistens of Bergman | failure of fusion of the apical secondary ossification center at the odontoid tip. visible as a "V" shape in pt over 12.
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os odontoideum | top of odontoid develops notmally but fails to unite. visualized as a well defined, smooth, radiolucency
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enchondromatosis | Enchondromatosis is a form of osteochondrodysplasia characterized by a proliferation of enchondromas. An Enchondroma is a cartilage cyst found in the bone marrow. Typically, enchondroma is discovered on a X-ray scan
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osteosarcoma | malignant bone lesion, cumulus cloud in appearance and effects predominately males btw 10-25
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bone island | thorn-like radiating spicules
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differentials for bone island | osteoma and osteoblastic metastasis
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enostoma, likely dx | bone island
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2 common locations for an enostoma to occur | ilium and proximal femur
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bone islands are not likely in the... | skull
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osteoid osteoma | Radiographs in osteoid osteoma typically show a round lucency, the nidus, surrounded by sclerotic bone.
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most common places for osteoid osteomas | femur and tibia
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most common stucture in the spine for osteoid osteoma to occur | lamina
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differential of osteoid osteoma | Brodie's abscess
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Brodie's abscess | subacute osteomyelitis, which may persist for years before converting to a frank osteomyelitis
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