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28 Cards in this Set
- Front
- Back
unilocular radiolucency at apex of NON-vital tooth. Most common radiolucency
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Periapical granuloma
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unilocular radiolucency at apex of NON-vital tooth +/- root resorption. Most common jaw cyst and odontogenic cyst (rests of Malassez).
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Periapical (radicular) cyst
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Found on buccal aspect of mandibular 1st molars of VITAL teeth in children displacing the roots lingually
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3. Inflammatory Buccal Cyst aka buccal bifurcation cyst
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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
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Dentigerous (Follicular) Cyst
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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
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Odontogenic Keratocyst (OKC) aka Primordial Cyst
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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
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Nevoid Basal Cell Carcinoma Syndrome
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rests of Serres asymptomatic, non-inflammatory, round-tear drop shaped, unilocular, radiolucency in bone adjacent to root of a VITAL tooth.
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Lateral periodontal cyst
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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 = |
Calcifying Odontogenic Cyst
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epithelial remnants form fusion of palate w/in nasopalatine canal asymptomatic, well-defined heart shaped radiolucency between max CI’s +/- root divergence.
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Nasopalatine duct cyst, aka incisive canal cyst
(1) variant: cyst of palatine papilla: solft tissue only (2) variant: median palatal cyst: posterior presentation |
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cystic change of epithelial rests extra osseous soft tissue cyst commonly found on the canine-mucobuccal fold (upper lip).
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Nasolabial cyst; Tx: curettage
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indentation of lingual surface of posterior mandible below IAN by normal salivary gland tissue. Common (males), How do you treat?
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NO Tx
Lingual Mandibular salivary gland depression aka Stafne bone cyst, static bone cyst |
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trauma (post mandible of teenage males) interradicular scalloping, empty intrabony cavity lacking epithelial lining, Also, Is this a true cyst?
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Solitary Bone Cyst aka Traumatic (Simple) Bone Cyst. NOT a true cyst (aka pseudocyst)
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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?
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Aneurysmal Bone Cyst; Not a true cyst (pseudocyst)
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epithelial remnants; midline swelling (most below hyoid); MOST COMMON developmental cyst of the neck.
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Thyroglossal Tract (Duct) Cyst
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developmental cyst of anterior floor of mouth above(displaces tongue)/below(midline swelling) the mylohyoid. Histo: epithelial lining + CT wall contains skin appendages
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Dermoid Cyst
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proliferation of epithelial islands in cervical lymph nodes; asymptomatic enlargement of lateral neck, teens-20’s. Histo: epithelial lined cyst + lymphoid tissue in wall.
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Branchial Cleft Cyst aka Cervical Lymphoepithelial Cyst
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What do PA granuloma, PA Cyst and Inflammatory buccal cyst have in common?
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They are all inflammatory odontogenic cysts
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Dentigerous cysts, odontogenic keratocysts, lateral periodontal cysts, calcifying odontogenic cysts, and glandular odontogenic cysts are all what group of cysts?
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Developmental odontogenic cysts
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Name the 2 developmental Non-odontogenic cysts
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Nasoplatine duct cyst; nasolabial cyst
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Static Bone cyst, Focal osteoporotic bone marrow defect, traumatic bone cyst, and aneurysmal bone cyst are all what type of cyst?
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Pseudocyst
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What do the following have in common: thyroglossal tract cyst, dermoid cyst, branchial cleft cyst
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soft tissue cysts of the neck
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What is the fancy name for remnants of the dental lamina?
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rests of serres
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What is the fancy name for remnants of Hertwig's root sheath?
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Rests of Malassez
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T or F: Most developmental odontogenic cysts are derived from epithelial remnants of the rests of Malassez.
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False; from the rests of serres
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T or F: Periapical cysts are derived from rests of serres.
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False; generally from rests of malassez
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T or F: Dentigerous cysts are derived from the reduced enamel epithelium
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true
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What are the rests called associated with reduced enamel epithelium?
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enamel organ rests
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What is the difference between a cyst and a pseudocyst?
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Pseudocyst has no epithelial lining
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