More radiographic interpretation Flashcards
What pathologies could come under radiographic jaw lesions?
Cysts
Benign neoplasms
Cancers
Developmental abnormalities
Reactive lesions
Genetic conditions
What differential diagnosis are there for suspected lesions on a radiograph?
Anatomical
Artefactual
Pathological
What information should you give when describing a radiographic lesion?
Site
Size
Shape
Margins
Internal structure
Effect on adjacent anatomy
What information should be given about the SITE of a radiographic lesion?
Specific location (which bone is it on)
Notable relationships with other structures (teeth, canals)
Where it is in position to other structures (close to max. sinus)
What information should be given about the SIZE of a radiographic lesion?
Measurement mesio-distally by supero-inferiorly
Describe boundaries (extends between 34 and 38)
Volumetric analysis from CBCT
What information should be given about the SHAPE of a radiographic lesion?
General - rounded, scalloped, irregular
Locularity - uni-ocular, pseudolocular, multiocular
What information should be given about the MARGINS of a radiographic lesion?
Well defined and corticated/non-corticated
Poorly defined and blending in/ragged
What is the significance of a radiographic lesion with a moth-eaten/ragged margin?
Suggests malignancy, corticated border indicates benign.
What information should be given about the INTERNAL STRUCTURE of a radiographic lesion?
Entirely radiolucent or,
Radiolucent with some internal radiopacity or,
Radiopaque
Internal radiopacities can be described by amount, bony profile, and particular structure.
What makes jaw lesions radiolucent?
Resorption of bone
Less mineralization in bone
Less thickness in bone
Replacement of bone with abnormal tissue
What makes jaw lesions radiopaque?
Increased thickness of bone
Osteosclerosis of the bone
Presence of abnormal tissue
Mineralization of normally non-mineralized tissues.
How can radiographic jaw lesions impact adjacent anatomy?
Some pathologies have characteristic growth
patterns related to their ability to affect adjacent
structures
Aggressive pathologies tend to grow quickly & be
more destructive
Displacement of structures, impaction of teeth, loss of lamina dura, widening of the PDL, erosion of structures.
Describe the lesion presented below.
Exclude size for the purposes of this card.
Site: Alveolar bone region of 46, above the right IAC
Shape: Uniocular and rounded
Margins: Well defined and corticated
Internal structure: Entirely radiolucent
Tooth involvement: None, but close to 45
Effects: Non visible
Number: Single
Describe the lesion presented below.
Exclude size for the purposes of this card.
Site: Right ramus and post. body of mandible, above IAC
Shape: Pseudolocular and scalloped
Margins: Well defined and corticated
Tooth involvement: Yes, displaced 48 and 47
Effects: Displaced teeth and IAC, thinned inferior cortex of mandible
Number: Single
Describe the lesion presented below.
Site: Alveolar bone of 46, above IAC
Shape: Oblong but irregular
Margins: Well defined and smooth
Internal structure: Homogeneously radiopaque
Tooth involvement: Yes involves apicies and furcation of 46
Effects: None
Number: Single