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JAVMA Dx Dental Imaging Flashcards

1
Q

What is depicted in this photo? What can this be mistaken for?

A

Carnassial Tooth Malformation: Caused by deepening/infoldings of the enamel organ into the dental papilla prior to calcification - does not communicate with external enamel

Mistaken for Dens Invaginatus: Communicates with the external enamel

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2
Q

What is depicted in the photo?

A

Comminuted Fracture of the Left Mandibular Rams and condylar process with osteomyelitis, septic arthritis

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3
Q

What are DDx for the image shown?

A

1, Ameloblastic fibroma (in image shown)

a. uncommon in cats, <3% of feline oral neoplasms
b. odontogenic tumor from epithelium/mesenchyme or both

  1. Feline inductive odontogenic
    tumor (FIOT)
    a. <3 years of age, rostral maxilla, infiltrative
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4
Q

What is the primary DDx based on the imaging? (no periodontal pockets)

A

Primary hyperparathyroidism

High ionized Ca, normal/low PTH
Oral appearance: ground glass of trabecular bone

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5
Q

What is the pathology present?

A

101 is nonvital with a periapical cyst present.

Periapical cyst occur with nonvital teeth

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6
Q

What are DDx for the image below? What was the Dx based on histopath?

A
  1. Osteomyelitis based on histopath (check for bacteria and fungus)
  2. Oral neoplasia
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7
Q

What species?

What is present on imaging?

A

Equine

Nondisplaced comminuted fracture of the condylar process of the right mandible

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8
Q

What are the pathologies present on the image?

A
  1. Soft tissue attenuating mass in the right nasal cavity with assoc with lysis of the nasal turbinates and surrounding structures
  2. periapical bone lysis with the maxillary M1
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9
Q

What are DDx for the pathology seen?

What was the Dx?

A

DDX: CAA, OMM, OSCC, FSA, OSA

Dx:
Incisor: POF

Max PM3: OSA (mesenchyme origin)

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10
Q

What is the pathology present?

A

Root fracture of the 304**

or

Subluxation of the 304 with nondisplaced fracture of the alveolar bone

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11
Q

What is the pathology seen?

A

Max PM3 is nonvital with external inflammatory root resorption and periapical lesions

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12
Q

What is the pathology present?

A

Impacted right mandibular canine tooth, bilaterally first PM

Left mandibular M1 is partially erupted through bone (not soft tissue) with dilacerated roots

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13
Q

What pathology is present?

A

204 is nonvital, arrested development because a complicated crown fractures is present with secondary focal periodontitis

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14
Q

What pathology is present?

A

Foreign body around the 404 - elastic elastic band

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15
Q

What abnormality is present?

A

Supernumerary tooth (either Incisors or PM1)

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16
Q

What pathology is present?

A

Enamel defects of PM4, M1, M2

Periodontal and endodontic disease with secondary osteomyelitis

sclerosis

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17
Q

What are two DDx?

What did this turn out to be?

A
  1. FIOT (feline inductive odontogenic tumor) based on histo
    a. odontogenic epithelium and dental pulp like ectomesenchyme
  2. Dentigerous cyst because of unerupted tooth
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18
Q

What is the pathology present?

A

Sialolith with secondary sialoadenitis

U/S - marked dilated echogenic fluid filled left paratoid duct with sialolith

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19
Q

What pathologies are present?

A

Fragments of missing Max incisors, PM1

Retained maxillary canine teeth (right is displaced)

Malformation of I1, I3, PM1

Odontodysplasia - imperfect development of enamel/dentin

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20
Q

What are DDx?

What was the Dx?

A

Dx - recurrent keratinizing odontogenic cyst

DDX: development or chronic inflammatory odontogenic cyst

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21
Q

What species?

What are the pathologies present?

A

Monkey

204 - PA/P, PE, T/NV
304 - PA/P, PE, T/NV
404 - PE, T/NV

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22
Q

What are the pathologies present?

A

Dens Invaginatus (maybe v CTM) with endodontic disease

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23
Q

What is the pathology present?

A

Mandibular molar 1: PA/P, osseous fragment (moth eaten) bone sequestrum and chronic osteomyelitis

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24
Q

What is the pathology present?

Dx?

A

loss of nasal turbinates
geographic bone loss
large soft tissue attenuating mass occupying the right nasal cavity

Nasal adenocarcinoma

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25
What is present?
Severe odontodysplasia | Impacted 404
26
What pathology is present?
Complicated crown root fracture of the mandibular M1 with PA/P Primary endo with secondary periodontal lesion
27
What is present?
304 - Previous RCT, missing RE | EIRR with odontogenic cyst i.e. periapical cyst because tooth is T/NV
28
What pathology is present
Unknown origin or a perio and endo lesions Class 1 - Primary endo, Secondary Perio Class 2 - Primary perio, Secondary Endo Class 3 - Primary endo, Primary perio
29
What pathology is present? DDx? Dx?
Poorly defined region of increase radiopacity, loss of nasal turbinates DDx: OSA, chondrosarcoma, osteoma, odontogenic neoplasms, MLTB Dx: MLTB - Multilobular Tumor of the Bone
30
What are DDx? What is the pathology present?
Expansile mass lesion with bone density, mutliloculated, non contrast enhancing DDX: odontogenic cyst or tumor Dx: Undetermined odontogenic cyst
31
What pathology is present?
104 - Root fracture, EIRR, luxated, T/NV
32
What pathology is present?
Supernumerary maxillary M3 Concrescence is present (teeth joined by cementum)
33
What pathology is present?
Right TMJ osteolysis of the lateral margin of the mandibular head of the condylar process Septic arthritis CT - Subchondral osteolysis
34
What pathology is present?
Buccal bone expansion Periodontal disease Extrusion
35
What are DDX? Dx?
Dx: POF DDx: focal fibrous hyperplasia, POF, CAA
36
What pathology is present?
Multiple comminuted depression fractures: maxilla, nasal, frontal bone: nasal septum
37
What is the pathology present? Dx:
Left mandibular osteolysis geographic bone loss with destructive osseous lesions, well defined regular and irregular borders Histo: OMM
38
What pathology is present?
Sialolith located in the left parotid duct Complicated crown root fracture of the maxillary PM2
39
What pathology is present?
204 - T/NV, EIRR
40
What pathology is present?
204 - AB, PA/P, EIRR with sinus tract
41
What pathology is present?
Developmental and acquired abnormalities Incomplete formation of the apical infundibula of the permanent Right Maxillary PM2
42
What pathology is present?
Displacement/Luxation of the incisor into the nasal passage
43
What pathology is present?
Tooth piece Foreign body in nasal passage near 204
44
What are DDx? What was Dx?
DDX: chondroma, odontoma, osteoma, osteochondroma, exostosis of the jaw CAA Dx: Osteoma
45
What pathology is present?
Condensing osteitis/ osteosclerosis Subperiosteal osteomyelitis with secondary endodontic disease of the mandibular PM3
46
What is the pathology? What can it be mistaken for?
Osteosclerosis - opacities not associated with tooth roots/PDL intact Mistaken for condensing osteitis/sclerosing osteitis - associated with chronic inflammation/pulpitis; may involve the PDL
47
What pathology is present?
Sinus tract | Parulis from the right mandibular M1, endodontic disease
48
What are DDx? What was the Dx?
DDx: dentigerous cyst with secondary infection and unerupted PM1, neoplasis Dx: OSCC
49
What is the pathology present?
Bilateral increase space with tooth bud of 309 Bilateral radiolucent lines = bilateral incomplete minimally displaced irregular transverse fracture at 309, 409
50
What is the pathology present?
malformed teeth, T/NV/ PA/P Dilacerated roots perio-endo lesions Suspected Dens invaginatus
51
What is the pathology present?
Moderate abrasion | 104, 204 - endodontic disease, T/NV, PA/P, EIRR (104)
52
What is the pathology present?
Dental Caries
53
DDX? Dx?
DDx: Neoplasia vs osteomyelitis Dx: Well differentiated carcinoma
54
What is the pathology present? | What is the species?
Rabbit Facial and Jaw abscessation apical enlargement of the mandibular PM/M
55
What is the pathology present?
Enamel hypoplasia Root hypoplasia Perio-endo combo lesions Odontodysplasia - imperfect development of enamel and dentin
56
What is the pathology present?
Unerupted mandibular PM4, displaced, dilacerated, cyst-like structure, tooth-like structures Dx: Compound odontoma Mixed odontogeniv tumor epithelial/mesenchymal
57
What pathology is present?
PM - Periodontitis, EIRR Incisor - RTR
58
What pathology is present? DDx? Dx?
Permeative bone loss, extrusion of 404, sunburst like periosteal reaction DDx: Osteomyelitis or neoplasia Histo: osteomyelitis
59
What pathology is present? DDx? Dx?
Substantial bone lysis and sunburst periosteal reaction 304 DDx: CAA, FSA, SCC, MM (amelanotic), osteomyelitis Dx: CAA
60
What pathology is present?
Tooth resorption Type 1 TR: Inflammatory Type 2 TR: Replacement Stage 1-5
61
What pathology is present?
``` Enamel defects (hypoplasia) T/NV Primary endodontic disease with secondary periodontal disease ```
62
What pathology is present?
Suboptimal shaping, voids in the RE, suboptimal obturation | PA/P
63
What pathology is present?
Previous RCT, suboptimal shape, development of a periapical cyst
64
What pathology is present?
Unerupted tooth with a dentigerous cyst
65
What pathology is present?
severe periodontal disease of the mandibular M2, M1, PM4
66
What species? What pathology is present?
Squirrel Mass extended from roots of incisors Histo = compound odontoma (denticles)
67
What species? What pathology is present?
Llama Histo = Ameloblastoma

AVDC Flash Cards (3 decks)

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