Clinical Radiology - Principles of Interpretive Radiology Flashcards
What are the 8 interpretation concepts?
- Know pt info
- Interpret good-quality images only
- Consider geometric factors
- Evaluate lesions in all dimensions
- Assess location, size, shape of lesion
- Recognize patterns of bone change
- Understand meaning of patterns
- Order advanced imaging as needed
A lesion above the mandibular canal is most likely of ______________ origin
odontogenic
A lesion above the mandibular canal may derive from what?
Tooth forming elements of jaws
A lesion within the mandibular canal is most likely of _____________ origin
vascular or neural
A lesion below the mandibular canal is most likely of _________________ origin
non-odontogenic
A lesion below the mandibular canal may derive from what?
Epithelial remnants of embryonic ducts
Benign tumor that forms within the nerve
Neurofibroma
What do ill-defined lesions suggest?
Infection
Malignancy
Determination of which 2 or more diseases with similar symptoms is the one from which the pt is suffering, by a systematic comparison and contrasting of the clinical findings
Differential diagnosis
What words are used to describe “number”?
One
Two
Multiple
What words are used to describe “size”?
Small
Large
What words are used to describe “shape”?
Round
Ovoid
Irregular
Scalloped
Triangular (TMJ)
What words are used to describe “internal structure”?
Unilocular
Multilocular
Dystrophic calcification
Amorphous bone
Tooth-like structure
What words are used to describe “periphery”?
Well-defined (corticated, non-corticated)
Ill-defined
What words are used to describe “density”?
Radiolucent
Radiopaque
Mixed
What words are used to describe “location”?
Superior
Inferior
Distal
Mesial
Associated w/
Localized/generalized
Unilateral/bilateral
What words are used to describe “effect on surrounding structures”?
Tooth displacement
Tooth resorption
Bone expansion
Bone perforation
Cysts are usually __________
unilocular
Tumors are usually ____________
multilocular
What do round multilocular lesions look like?
Soap bubbles
What do straight multilocular lesions look like?
Tennis rackets
What malignancy is usually associated with a round multilocular lesion that looks like soap bubbles?
Ameloblastoma
Unilocular and multilocular lesions are _______________
radiolucent
Soft tissue lesion that started calcifying
Dystrophic calcification
Dystrophic calcifications, amorphous bone, and tooth-like structures are _____________
radiopaque
Well-defined lesion with denser bone surrounding it
Corticated
Which well-defined lesions are slower growing: corticated or non-corticated?
Corticated
What is an example of an ill-defined lesion?
Osteomyelitis
