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Oral Pathology > Exam 1 - Radiolucencies > Flashcards

Exam 1 - Radiolucencies Flashcards

Radiolucencies Only (55 cards)

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1
Q

Most common odontogenic cyst

A

Periapical granuloma / cyst

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2
Q

Periapical granuloma / cyst :
Unilocular or multilocular

A

Always unilocular

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3
Q

Apex of a non vital tooth; cant distinguish by size or radiographic appearance

A

Periapical granuloma / cyst

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4
Q

Periapical granuloma / cyst between teeth

A

lateral radicular cyst

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5
Q

When a tooth is extracted without taking care of a Periapical granuloma / cyst what is left behind

A

residual periapical cyst

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6
Q

Point of drainage for sinus tract of a necrotic tooth

A

Parulis

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7
Q

Lined by epithelium, can be developmental or inflammatory

A

Cyst

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8
Q

Second most common odontogenic cyst

A

Dentigerous cyst

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9
Q

Dentigerous cyst arises from

A

reduced enamel epithelium

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10
Q

Unilocular around the crown of a tooth

A

Dentigerous cyst

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11
Q

what is the most common mimc of a dentigerous cyst

A

OKC (then unicystic ameloblastoma)

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12
Q

A small dentigerous cyst lesion is virtually identical to

A

hyperplastic dental follicle

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13
Q

In the soft tissue overlying the crown; can be bluish because of blood

A

eruption cyst

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14
Q

Usually unilocular, but can look multilocular. In the mandible, canine / premolar area between teeth

A

Lateral periodontal cyst

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15
Q

Where does the lateral periodontal cyst derive from

A

dental lamina rests

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16
Q

With a lateral periodontal cyst are teeth vital or non vital?

A

Teeth are vital (different from lateral radicular cyst)

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17
Q

Identical to lateral periodontal cyst but in soft tissue not bone

A

gingival cyst of the adult

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18
Q

Teeth are vital, radiolucency between apices of #8-9

A

Nasopalatine Duct cyst (incisive canal cyst)

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19
Q

When is a Nasopalatine Duct cyst (incisive canal cyst) abnormal / too big to have this diagnosis

A

> 6mm = abnormal because the canal cant get bigger than that

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20
Q

Unilocular or multilocular, looks like many other lesions

A

Odontogenic keratocyst (OKC)

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21
Q

Tunnels through bone instead of expanding

A

Odontogenic keratocyst (OKC)

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22
Q

Odontogenic keratocyst (OKC) is derived from

A

Dental lamina rests

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23
Q

In this syndrome OKC’s in the jaw are characteristic (More than 2 lesions = syndrome)

Study These Flashcards
A

Nevoid basal cell carcinoma syndrome (Gorlin syndrome)

24
Q

What is another name for Nevoid basal cell carcinoma syndrome

Study These Flashcards
A

Gorlin syndrome

25
What are 5 characteristic features of Nevoid basal cell carcinoma syndrome besides OKCs
Bifid ribs Basal cell carcinoma Calcified falx cerebri palmar / plantar pitting increased cranial circumference
26
Big hole in bone with no lining
Simple bone cyst (traumatic bone cyst)
27
Who usually gets simple bone cysts
young patients (10-20 years old)
28
Teeth are painless and vital, lesion is in the mandible only and scallops up between the roots, unilocular
Simple bone cyst (traumatic bone cyst)
29
Benign odontogenic epithelial tumor
Ameloblastoma
30
Found in the mandible, most often the posterior, unilocular or multilocular, soap bubble or honeycomb
Ameloblastoma
31
More round and expansive than OKC
Ameloblastoma
32
Unilocular, pericoronal to un-erupted 3rd molar
Unicystic ameloblastoma
33
Visual intraorally, any odontogenic cyst or tumor can do this
Peripheral ameloblastoma
34
What are 2 "other" benign odontogenic tumors
Ameloblastic fibroma Odontogenic fibroma
35
Ameloblastic fibroma (4 things)
Posterior Jaw <20 years Unilocular Impacted tooth
36
Odontogenic fibroma is found
in both jaws
37
<30 years Mandible, anterior, can cross midline Expansile, unilocular or multilocular
Central giant cell granuloma
38
What do you have to rule out when you suspect central giant cell granuloma
Rule out brown tumor (hyperparathyroidism)
39
Developmental in bone due to normal salivary gland tissue (thinning of bone)
Stafne Defect (stafne bone cyst: not a cyst)
40
Found below inferior alveolar canal
Stafne defect (stafne bone cyst: not a cyst)
41
Found within the mandibular canal
Schwannoma / Neurofibroma in bone
42
AV malformations
Bony vascular malformations
43
Multilocular, trabeculation Pulsation, bruit, warm, bright red blood
Bony vascular malformations
44
What needs to be taken if a Bony vascular malformations is suspected
An angiogram
45
Found in the mandible at an old extraction site
Focal osteoporotic marrow defect
46
Pain, tooth mobility, numb chin
Radiolucent malignancies involving bone
47
Radiolucent malignancies involving bone Children vs adults
In children leukemia/lymphoma, rhabdomyosarcoma, Ewing sarcoma In adults Metastatic carcinoma (most often mandible), lymphoma, multiple myeloma (multiple punched out radiolucencies)
48
In soft tissue or in the jaw (with time perforation into soft tissue)
Non-hodgkin lymphoma
49
Ill defined, pain, numb chin but the teeth are not effected
Non-hodgkin lymphoma
50
Punched out 70 years Multiple areas
Multiple Myeloma
51
What is associated with a multiple myeloma
renal insufficiency recurrent bacterial infections
52
What are the 6 developmental cysts
Dentigerous cyst Eruption cyst Lateral periodontal cyst Gingival cyst of the adult Nasopalatine duct cyst Odontogenic Keratocyst
53
If you see a multilocular lesion what 5 things could it be
Lateral periodontal cyst Odontogenic keratocyst Ameloblastoma Central giant cell granuloma Bony vascular malformations
54
Which radiolucencies have pain
Periapical granuloma/ cyst (acute= pain) Central Giant Cell Granuloma (Can have pain but doesn't have to) Schwannoma/ Neurofibroma in bone Radiolucent malignancies involving bone Non- Hodgkin Lymphoma (Vague pain) Multiple Myeloma
55
How can you tell the difference between a residual periapical cyst and a focal osteoporotic marrow defect
Histology tells you the difference focal osteoporotic marrow defect = fatty and hematopoietic marrow (also only in the mandible) Residual periapical cyst= thick, non-keratinized epithelial lining

Oral Pathology (4 decks)

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