17. Principles Appendicular skeleton Flashcards
1
Q
Oblique projections!
A
2
Q
What angle of obliquity is typically used for oblique projections?
A
30-45 degress
3
Q
What are the three features used to describe aggressive / nonaggressive bone lesions?
A
1) Cortical lysis
2) Periosteal reaction (ACTIVE vs smooth / none)
3) Zone of transition
4
Q
Describe three different types of lysis
A
1) Geographic: Large, well defined
2) Moth-eaten: Multiple medium to small lytic foci
3) Permeative: Smaller of pinpoint lytic foci
5
Q
TABLE of ortho disease by number of bones effectred, location, demographic
A