Cysts Oral Path Test 3

Front 1

unilocular radiolucency at apex of NON-vital tooth. Most common radiolucency

Back 1

Periapical granuloma

Front 2

unilocular radiolucency at apex of NON-vital tooth +/- root resorption. Most common jaw cyst and odontogenic cyst (rests of Malassez).

Back 2

Periapical (radicular) cyst

Front 3

Found on buccal aspect of mandibular 1st molars of VITAL teeth in children displacing the roots lingually

Back 3

3. Inflammatory Buccal Cyst aka buccal bifurcation cyst

Front 4

most common developmental odontogenic cyst, second most common odontogenic cyst. Fluid accumulation between REE and follicle unilocular >4mm radiolucency assoc w/ crown impacted tooth (3rds and canines = teens)  inc size/bone destruction w/o tx

Back 4

Dentigerous (Follicular) Cyst

Front 5

remnants of dental lamina  aggressive unilocular (small) or multilocular (large) smooth/cloudy (keratin) radiolucency. Causes tooth displacement > resorption, found in jaw esp. post mandible associated with impacted/ erupted teeth or by itself. Comprise 10% of odontogenic cysts

Back 5

Odontogenic Keratocyst (OKC) aka Primordial Cyst

Front 6

mutation of Patched gene  Major criteria: multiple odontogenic keratocysts (2nd decade), multiple basal cell carcinomas (3rd decade), calcified falx cerebri (by age 20) and palmar/plantar pits. Minor criteria: macrocephaly, bifid rib

Back 6

Nevoid Basal Cell Carcinoma Syndrome

Front 7

rests of Serres  asymptomatic, non-inflammatory, round-tear drop shaped, unilocular, radiolucency in bone adjacent to root of a VITAL tooth.

Back 7

Lateral periodontal cyst

Front 8

rests of Serres  uni/multilocular, +/- scattered radiopacities with well defined margins commonly found intra-osseous of anterior jaws.
adenomatoid odontogenic tumor, odontoma, calcifying epithelial odontogenic tumor, ameloblastic fibroodontoma
diff dx =

Back 8

Calcifying Odontogenic Cyst

Front 9

epithelial remnants form fusion of palate w/in nasopalatine canal  asymptomatic, well-defined heart shaped radiolucency between max CI’s +/- root divergence.

Back 9

Nasopalatine duct cyst, aka incisive canal cyst
(1) variant: cyst of palatine papilla: solft tissue only
(2) variant: median palatal cyst: posterior presentation

Front 10

cystic change of epithelial rests  extra osseous soft tissue cyst commonly found on the canine-mucobuccal fold (upper lip).

Back 10

Nasolabial cyst; Tx: curettage

Front 11

indentation of lingual surface of posterior mandible below IAN by normal salivary gland tissue. Common (males), How do you treat?

Back 11

NO Tx
Lingual Mandibular salivary gland depression aka Stafne bone cyst, static bone cyst

Front 12

trauma (post mandible of teenage males)  interradicular scalloping, empty intrabony cavity lacking epithelial lining, Also, Is this a true cyst?

Back 12

Solitary Bone Cyst aka Traumatic (Simple) Bone Cyst. NOT a true cyst (aka pseudocyst)

Front 13

rare, destructive, well defined, rapid expansile lesion often associated with antecedent bone lesion of posterior jaws. 50% painful. Histo: similar to CGCG w/ sinusoidal blood spaces. Is this a true cyst?

Back 13

Aneurysmal Bone Cyst; Not a true cyst (pseudocyst)

Front 14

epithelial remnants; midline swelling (most below hyoid); MOST COMMON developmental cyst of the neck.

Back 14

Thyroglossal Tract (Duct) Cyst

Front 15

developmental cyst of anterior floor of mouth above(displaces tongue)/below(midline swelling) the mylohyoid. Histo: epithelial lining + CT wall contains skin appendages

Back 15

Dermoid Cyst

Front 16

proliferation of epithelial islands in cervical lymph nodes; asymptomatic enlargement of lateral neck, teens-20’s. Histo: epithelial lined cyst + lymphoid tissue in wall.

Back 16

Branchial Cleft Cyst aka Cervical Lymphoepithelial Cyst

Front 17

What do PA granuloma, PA Cyst and Inflammatory buccal cyst have in common?

Back 17

They are all inflammatory odontogenic cysts

Front 18

Dentigerous cysts, odontogenic keratocysts, lateral periodontal cysts, calcifying odontogenic cysts, and glandular odontogenic cysts are all what group of cysts?

Back 18

Developmental odontogenic cysts

Front 19

Name the 2 developmental Non-odontogenic cysts

Back 19

Nasoplatine duct cyst; nasolabial cyst

Front 20

Static Bone cyst, Focal osteoporotic bone marrow defect, traumatic bone cyst, and aneurysmal bone cyst are all what type of cyst?

Back 20

Pseudocyst

Front 21

What do the following have in common: thyroglossal tract cyst, dermoid cyst, branchial cleft cyst

Back 21

soft tissue cysts of the neck

Front 22

What is the fancy name for remnants of the dental lamina?

Back 22

rests of serres

Front 23

What is the fancy name for remnants of Hertwig's root sheath?

Back 23

Rests of Malassez

Front 24

T or F: Most developmental odontogenic cysts are derived from epithelial remnants of the rests of Malassez.

Back 24

False; from the rests of serres

Front 25

T or F: Periapical cysts are derived from rests of serres.

Back 25

False; generally from rests of malassez

Front 26

T or F: Dentigerous cysts are derived from the reduced enamel epithelium

Back 26

true

Front 27

What are the rests called associated with reduced enamel epithelium?

Back 27

enamel organ rests

Front 28

What is the difference between a cyst and a pseudocyst?

Back 28

Pseudocyst has no epithelial lining