Bone Imaging Flashcards
location preference of simple cyst
proximal humerus, proximal femur
location preference of parosteal osteosarcoma
posterior femur
location preference of periosteal osteosarcoma
tibial diaphysis
location preference of adamantinoma
anterior mid tibia
location preference of hemangioma
spine, skill
where does giant cell tumor occur
metaphysis +/- epiphysis; occurs after closure of growth plate
**giant cell tumors are
epiphyseal
what is periosteal reaction
the response of bone to underlying lesion; it is indicative of growth rate and irritation level of lesion
**which periosteal reaction is considered the least aggressive
solid periosteal reaction
we talk about periosteal reaction in tumors that
break through the cortex
osteoid lesions may be described as
cloud-like
chondroid lesions may be described as
“stippled”
“arcs and rings”
**when do non-aggressive asymptomatic lesions need follow up
only when there is a change in symptoms
what part of a lesion is the most important
the most aggressive part
where do fracture dislocations tend to occur
elbow, ankle, knee
**open fractures are at increased risk of
infection
fracture displacement nomenclature
described as distal fragment with respect to proximal fragment
***what radiograph views are required for best evaluations of joints
three views!!!
AP (frontal), lateral, and oblique
subluxation is a
partial dislocation of joint
fracture that can be hard to see on radiograph
impacted
supracondylar humerus fractures have risk for
- vascular damage
* nerve damage (anterior interosseous=AIN)
**what is fracture malunion
healing in an abnormal position
demographic that are at higher risk of fracture delayed union or non-union
- smokers
* renal disease
particular bone that has a tendency for non-union
scaphoid
