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Radiology > Radio-opaque lesions > Flashcards

Radio-opaque lesions Flashcards

1
Q

Torus palatinus is a?

A

hyperplasis

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2
Q

Torus palatinus - describe

A

palatal torus / bony protuberance at the midline of the palate

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3
Q

Torus palatinus radiographic features

location, periphery and shape, internal structure?

A

Located - hard palate

periphery and shape – well defined, convex or lobulated

internal structure - homogeneously and radio-opaque

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4
Q

Torus mandibularis is?

A

a hyperplasia

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5
Q

describe Torus mandibularis

A

mandibular tori - bony protberance on the lingual aspect of the mandible close to PM

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6
Q

Torus mandibularis radiographic features?

location, periphery and shape, internal structure?

A

lingual and bilateral

periphery and shape - sharply demarcated

internal – homogenously radio-opaque

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7
Q

hyperostosis is?

A

other hyperostosis
- small regions of osseous hyperplasia

  • most commonly on the buccal surface of the maxilla
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8
Q

is hyperostosis a pathology

A

no – just excessbone within that region

so can be associated with the tori

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9
Q

hyperostosis radiographic features

location, periphery and shape, internal structure?

A

maxillary alveolar process - super-imposed on teeth

periphery- well defined or poorly

internal - radio-opaque and homogenous

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10
Q

dense bone island

A

enostosis, periapical idiopathic osteosclerosis

localized growth of compact bone

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11
Q

radiographic features of dense bone island

location, periphery and shape, internal structure effects?

A

location – madible > maxilla
PM-molar region

periphery - well defined and NO CAPSULE

internal structure - radio

may resorb roots but PROBABLY NOT

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12
Q

hypercementosis looks like?

A

excess cementum over roots but the PDL and lamina dura are in tact

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13
Q

odontoma disease mechanism

A

radiographically and histologically characterized by the production of mature enamel, dentin, cementum and pulp
can arise off cortical thickness

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14
Q

odontoma true benign neoplasm?

A

no - arise off of he

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15
Q

osteoma disease mechanism

A

may arise from cartilage or embryonic origin

  • can go into sinus and onto the mandible
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16
Q

clinical features of osteoma

A

> 40 , asymetry caused by the swelling and painless, cortical type in men and cancellous in woman

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17
Q

osteoma location

A

location - mandible > maxilla, lingual side of ramus of the mandible or inferior mandibular border apical to molars, condyle and coronoic process
paranasul/ frontal sinus

18
Q

osteoma radiographic features

periphery, internal structure, effects on surrounding?

A

Periphery - well defined

internal - uniformly radio-opaque

effects on surrounding - displacement of adjacent structures

19
Q

osteoma DD?

A

see slide

20
Q

symmetry with osteoma?

A

no – asymmetric - how differentiate with tori (usually seen bilateral)

21
Q

symmetry with osteoma?

A

no – asymmetric - how differentiate with tori (usually seen bilateral)

22
Q

why worry about gardners syndrome?

A

yes - can transform into malignancies

  • especially when we start to see more than 5 polyps
23
Q

gardners syndrome

A

a variant of familial adenomatous polyposis (FAP)

24
Q

gardners syndrome inheritance pattern?

A

autosomal dominant characterized by GI polyps, multiple osteomas, and skin and soft tissue tumors

25
Q

percent risk polyps have of undergoing malignant transformation?

A

100%

26
Q

radiographic feature of gardners syndrome

A

multiple dense bone islands

osteomas are most commonly seen in frontal, mandible, maxilla, and sphenoid bones

more than 5 dense bone islands should consider a syndrome

multiple unerupted teeth permanent and supernmerary

27
Q

radiographic feature of gardners syndrome

A

multiple dense bone islands

osteomas are most commonly seen in frontal, mandible, maxilla, and sphenoid bones

more than 5 dense bone islands should consider a syndrome

multiple unerupted teeth permanent and supernmerary

28
Q

cemento-osseous dysplasia three variants

A
  1. peri-apical COD
  2. focal COD
  3. florid COD
29
Q

Peri-apical cemento-osseous dysplasia definition

A

localized change in normal bone metabolism , resulting in cancellous bone replaced by fibrous tissue and cementum like material

30
Q

Peri-apical cemento-osseous dysplasia features

A

middle aged individuals, females >males , more common in blacks

31
Q

cemento-osseous dysplasia three variants test same?

A

YES – starts off at radiolucent to tooth structure and ALL TEETH WILL TEST VITAL

32
Q

difference between peri-apical __ and the periapical cemento-osseous dysplasia

A

Peri-apical lesion – TOOTH IS NON-VITAL AND WITH THESE THE TOOTH TEST VITAL
- What do we do for vital teeth –> not doing treatment

33
Q

Florid Cemento-osseous dysplasia definition

A

FCOD is a wide spread of
PCOD

Normal cancellous bone replaced by fibrous tissue and cemento-osseous tissue, poorly vascularized

34
Q

Florid Cemento-osseous dysplasia INITIAL PHASE?

A

RADIO-LUCENT – like all the variants

35
Q

importance of vitality test?

A

MUST DO THIS as Cemento-osseous dysplasia because do not want endo treat if do not need to

36
Q

odontoma synoym

A

odontogenic hamartoma

37
Q

complex odontoma

A

nondescript mass of dental tissue

38
Q

compound odontoma

A

multiple well defined teeth

39
Q

clinical feature of odontoma

A

most common and interfere with eruption

40
Q

radiographic features of odontoma

location, periphery and shape, internal structure effects?

A

Location – compound = anterior maxilla w/ crown of unerupted teeth

complex= mand 1st and second molar

periphery - well defined, smooth or irregular, corticated border with a radiolucent area adjacent

internal– radio-opaque
compound – tooth like
complex – irregular calcified

effects – impaction, malpositioning, diastema, malformaiton

41
Q

root fragments

A
  • Dense structure that does have some pdl and lamina dura coming out
    • Pdl widened around the root strucure
      ○ So have som type of periodontal lesion or inflammation has taken place

Top middle - retained root tip
- CAN SESE PDL AND LAMINA DURA AND PULP CANAL RUNNING THROUGH
Onto the periapical –>
Vs. dense bone island - radio-opaque WITH NO CAPSULE OR CORTICATION AROUND I

Radiology (26 decks)

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