Quiz 1 - Intro To BP Flashcards
How do you identify an osseous matrix?
Calcification of mass: cloud-like, cotton candy
How do you identify a cartilaginous matrix?
Identified by calcification: pop-corn, stippled, punctate
How do you identify a fibrous matrix?
Appears hazy, like ground glass
How do you identify a fat matrix?
CT or MRI
Which of the following periosteal responses suggest malignancy?
A) Solid / single thick layer B) Single layer C) Cortical buttressing D) Laminated E) Codman triangle F) Sunburst AKA Sunburst
D-F
When there is cortical destruction, always concerned about malignancy/aggression
Periosteal response is pretty much perpendicular to the bone.
- What is this?
- benign or malignant or aggressive lesion?
Sunburst AKA Spiculated
Aggressive lesion
Can’t trace the cortex (cortex destroyed) and it looks like something from the inside pushed the cortex outwards to form an apex.
- What is this?
- benign or malignant or aggressive lesion?
Codman triangle
Aggressive lesion
Lamellated or onion skin, looks like there is space between the layers of bone.
- What is this?
- benign or malignant or aggressive lesion?
Laminated
Aggressive lesion
Thinning of cortex caused by lesion within bone, but not necessarily aggressive.
- What is this?
- benign or malignant or aggressive lesion?
Cortical buttressing
Less aggressive lesion
What is the only periosteal response that is NOT associated with malignant/aggressive lesion?
A solid, single layer of bone (vs. laminated/onion skin which is many layers of bone)
It’s slow growing, which allows the body to create another bony response in the cortical layer.
Benign or 1˚ malignant or Mets?
Patient under 30 yo
Benign (or primary malig which can be all ages)
Benign or 1˚ malignant or Mets?
Lesion >6cm
Primary malig
Benign or 1˚ malignant or Mets?
NO cortical destruction
Benign
Benign or 1˚ malignant or Mets?
Monostotic lesion
Benign or primary malig (except MM)
Benign or 1˚ malignant or Mets?
NO periosteal response
Mets
Benign = solid periosteal response, NOT spiculated
