Developmental defects class period 2 TEST #1

Question 1

What is a cyst?

Answer 1

-Pathologic cavity lined by epithelium

Question 2

What is a pathologic cavity lined by epithelium?

Answer 2

-Cyst

Question 3

T/F Cysts are typically fluid filled

Answer 3

True

Question 4

Once cysts develop in the oral & maxillofacial region what occurs?

Answer 4

-They slowly increase in size due to the elevated hydrostatic luminal pressure

Question 5

Where do Epstein pearls occur?

Answer 5

-Occur along the median palatal raphe

Question 6

What causes epstein pearls to occur?

Answer 6

-Entrapped epithelium along fusion line

Question 7

What palatal cysts of the newborn are scattered all over hard palate and usually near the junction of soft palate?

Answer 7

-Bohn’s nodules

Question 8

What do Bohn’s nodules appear as?

Answer 8

-Small 1-3 mm of white or yellow papules near the midline

Question 9

What are two types of palatal cysts of newborns?

Answer 9

• Epstein’s pearls

- Bohn’s nodules

Question 10

What is a swelling of the upper lip, lateral to the mideline, resulting in elevation of the ala of the nose known as?

Answer 10

-Nasolabial cyst

Question 11

Is a nasolabial cyst a cyst of the bone or the soft tissue?

Answer 11

-Soft tissue

Question 12

Does nasallabial cysts occur in males or females more?

Answer 12

-Femalse

Question 13

Globulomaxillary radiolucencies is a termed used by older dentist, most commonly these radiolucencies are what?

Answer 13

• Periapical or radicular cysts (most common)

- Periapical granuloma

Question 14

What is the most common non-odontogenic cyst of the oral cavity?

Answer 14

-Nasopalatine duct cyst (centered around the central incisors)

Question 15

Where does the nasopalatine duct cyst occur?

Answer 15

-Near the incisive canal

Question 16

If the nasopalatine radiolucency is larger than 6 mm is it a cyst?

Answer 16

-Possibly

Question 17

Are the teeth vital with a nasopalatine duct cyst?

Answer 17

-Yes If non vital then it will be a periapical cyst

Question 18

What is the soft tissue counter part of a nasopalatine duct cyst?

Answer 18

-Cysts of the incisive papilla (appears bluish in color)

Question 19

What is the most common follicular cysts of the skin?

Answer 19

-Epidermoid cyst

Question 20

What is a dermoid cyst located around?

Answer 20

-Has adnexal structures in the cyst wall

Question 21

What do epidermoid cysts appear as?

Answer 21

-White or yellow unless inflamed

Question 22

Where do dermoid cysts in the oral cavity occur around on an axis?

Answer 22

-Midline

Question 23

Where type of cysts develop from epithelial remnants of the thyroglossal tract?

Answer 23

-Thyroglossal duct cyst

Question 24

On an axis where does a thyroglossal duct cyst form?

Answer 24

-Midline

Question 25

What are thryoglossal cysts associated with?

Answer 25

-Colloid

Question 26

Where do you find lymphoepithelial cysts?

Answer 26

- Waldeyers ring | - Lymphoid aggreagtes

Question 27

Where is the most common location of lymphoepithelial cysts?

Answer 27

-Floor of mouth

Question 28

What is the common size of a lymphoepithelial cyst?

Answer 28

-Mass less than 1 cm in diameter

Question 29

What do lymphoepithelial cysts appear as clinically?

Answer 29

Yellow or white

Question 30

Where do branchial cleft cysts occur?

Answer 30

-Occurs in upper lateral neck along anterior border of SCM

Question 31

What is the branchial cleft cyst also known as?

Answer 31

-cervical lymphoepithelial cyst

Question 32

What are lymphoepithelial cysts bilaterally on the neck associated with the parotid gland associated with?

Answer 32

-HIV

Question 33

What is associated with asymmetric overgrowth of one or more body parts (unilateral)?

Answer 33

-Hemihyperplasia

Question 34

What is the cause of progressive hemifacial atrophy?

Answer 34

-Borelia (lyme disease)

Question 35

What other disease does hemifacial atrophy mimic?

Answer 35

-localized linear scleroderma

Question 36

What is a painless unilateral enlargement of the maxillary bone along with overgrowth of overlying gingiva known as?

Answer 36

-Segmental odontomaxillary dysplaisa

Question 37

What developmental condition has one or both of the developing maxillary premolars the are missing?

Answer 37

-Segmental odontomaxillary dysplasia

Question 38

What is Crouzon syndrome/Craniofacial dysostosis characterized by?

Answer 38

-Craniosynostosis

Question 39

What is the most sever case of Crouzon syndrome?

Answer 39

-Cloverleaf skull (Kleeblatt-schadel deformity)

Question 40

What does aper syndrome have associated with it?

Answer 40

- Ocular proptosis (bulging eyes) - Hypertelorism (eyes far apart) - Syndactyly (fusion of fingers or toes) - Lateral slant of palperal fissures

Question 41

What is associated with Crouzon syndrome?

Answer 41

- Brachycephaly (short head) - Ocular proptosis - underdeveloped maxilla

Question 42

Treacher collins syndrome has what associated with it?

Answer 42

- Defects of structures derived from 1st and 2nd branchial arches - Hypoplastic zygoma - coloboma (notch on outer portion of lower eyelid) - Underdeveloped mandible