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5th Oral Disease - Imaging/ Radiographs > Maxillofacial Interpretation > Flashcards

Maxillofacial Interpretation Flashcards

1
Q

How to describe a lesion?

A 
Density 
Where lesion is 
Single or multiple
Border e.g well defined/ corticated
Associated pathology - root displacement, resorption
Bony expansion
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2
Q

How could you well if a lesion was well-defined?

A

If you could take a pen and draw around it

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3
Q

What is the most common bony abnormality seen on a radiograph?

A

Radiolucency

Most common = cyst

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4
Q

How to differentiate between radicular cyst and granuloma?

A

Size and margin different

Cyst - well defined and corticated margin (granuloma won’t)

If 1-.1.5cm> likely to be cyst

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5
Q

Difference in XLA for granuloma and cyst?

A

XLA granuloma - expect bony infill

XLA cyst - cyst persist

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6
Q

Possible differentials for radiolucent area in bone?

A

Granuloma
Radicular cyst
Keratocyst (mandible expansion)

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7
Q

Possible differential diagnosis of multiple well-defined and corticated radioluecnies?

A

Keratocyst

Ameloblastoma

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8
Q

What syndrome is associated w/ multiple jaw keratocysts?

A

Gorlin Goltz

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9
Q

What is a pericoronal radiolucency?

A

Lucnecy often seen around the crown of normally erupting teeth in the follicular space

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10
Q

What would be suggestive of cyst if follicular space included?

A

Size greater 3mm -follicular space is 3mm

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11
Q

Most common pericoronal pathology in the jaw?

A

Dentigerous cyst

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12
Q

Differential of periocoronal radiolucency?

A

Dentigerous cyst
Keratocyst
Ameloblastoma

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13
Q

What does calcification within the radiolucency suggest?

A

Adenomatoid odontogenic tumour
Pindborg tumour
Calcifying odontogenic cyst

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14
Q

What would need to consider if radiolucent lesion w/ indistinct borders?

A

Could be periodontal disease but bone loss w/ indistinct border can be sinister

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15
Q

Examples of radiolucent lesions w/ indistinct borders?

A

Osteomyelitis

Squamous cell carcinoma

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16
Q

What is osteomyelitis?

A

Infection of marrow space

17
Q

What pathological feature can you see with SCC?

A

Pathological fractures as bone becomes so thin

18
Q

What lesion gives a sunburst radiopaque pattern?

A

Osteosarcoma - malignancy of connective tissue

Radiopaque - not homogeneous - see spicules of bone

19
Q

What should you be worried about in pt with breast, prostate, lung, thyroid and kidney cancers?

A

Possible metastasis to bone

20
Q

What is highly suggestive on sinister pathology?

A

1+ of the ‘4 white lines being absent’ on OPT

Lines: antra floor, hard palate, zygomatic buttress, posterior wall of sinus

21
Q

Of the 4 lines which are horizontal and which are vertical?

A

Vertical = hard palate, floor of antrum

Horizontal = zygomatic buttress and posterior wall of sinus

22
Q

What should you consider when see radiopaque lesion?

A

May not be in bone - could be in adjacent soft tissues

23
Q

What could be the diagnosis of a well defined opacity over angle of mandible?

A

Calculus in submandibular salivary gland

24
Q

What would the diagnosis be a of a collection of radiopaque masses that look like small bits of tooth?

A

Compound odontome

25
Q

What is a cementoblastoma?

A

Radiopaque benign neoplasm

26
Q

When would you expect to see cementoblastoma?

A

Around the roots of lower molar teeth in young adults - usually male

27
Q

What is problem with cementoblastoma?

A

Can be painful
Can resorb teeth
Expand jaw

28
Q

What would diagnosis be of a radiopaque lesion around roots of lower molars of young adult - especially if male?

A

Cementoblastoma

29
Q

What is Gardner’s syndrome?

A

Presence of multiple jaw osteomas w/ or w/o supernumerary teeth
Possible odontomes

30
Q

What is the tubular shaped opacity extending from stylohyoid process?

A

Calcification of the ligament

31
Q

What would a large well-defined rounded opacity in cervical region suggest?

A

Calcified lymph nodes

32
Q

What would multiple small opacities made up of concentric rings be suggestive of?

A

Phleboliths - seen in vascular lesions?

33
Q

What would a rounded single opacity over mandibular angle be suggestive of?

A

Calculus in submandibular gland

5th Oral Disease - Imaging/ Radiographs (4 decks)

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