Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/33

Click to flip

33 Cards in this Set

  • Front
  • Back
most common odontogenic tumor/“odontoma”. Aggressive, uni/multilocular, RL (no hard tissue induction = radiopacities), expansile lesion of the post mandible. Histo: Columnar odontogenic epithelium, basal cell nuclei = palisaded w/ reverse polarization, surrounding reminiscent “stellate reticulum.” Tx: surgical resection – recurrence common.
Ameloblastoma
uncommon, perio membrane origin à RL surrounding roots involving alveolar process = localized loosening of teeth. Histo: islands of bland squamous epithelium.
Squamous Odontogenic Tumor
aka Pinborg tumor: rare unil/multilocular RL +/- radiopaque foci. Less agg than ameloblastoma, mand > max. Histo: droplet-like calcifications w/ Liesegang (lamellar) rings w/ amyloid-like globular deposits.
Calcifying Epithelial Odontogenic Tumor (CEOT)
aggressive, infiltrative, expansile, multilocular/honeycomb RL with trabeculae at 90 deg to cortical surface. No site preference. Histo: myxoid. Tx: resection w/ long term F/U, HIGH recurrence.
*Diff dx multilocular: amelo, OKC, CGCG, central hemangioma.
Odontogenic Myxoma
rare, Max = ant to 1st molars, Mand = posterior to 1st molars. Non-specific RL. Histo: fibrous CT, +/- odontogenic epithelium.
Central Odontogenic Fibroma
aka odontogenic epithelial hamartoma. Attached gingiva. Histo: same as Central Odontogenic Fibroma
Peripheral Odontogenic Fibroma
rare cementum producing neoplasm w/ inherent growth potential, attached to root of tooth esp. post mandible, teens – early 20’s à RADIOPAQUE mass of a VITAL tooth surrounded by a RL RING. Tx: REMOVAL of affected teeth and bone, will continue growing if not removed!
Cementoblastoma
very benign hamartoma of the anterior jaws esp. maxilla commonly associated w/ impacted tooth (max canine)
Adenomatoid Odontogenic Tumor (AOT):
Histo: islands of bland squamous epithelium.
Squamous Odontogenic Tumor
aka Pinborg tumor
Calcifying Epithelial Odontogenic Tumor (CEOT)
Ameloblastoma, AOT, SOT, CEOT are all:
odontogenic benign epithelial tumors
Ameloblastoma variant: less aggressive, long-term follow up (20+ yrs)
Cystic Ameloblastoma
aka odontogenic epithelial hamartoma
Peripheral Odontogenic Fibroma
very benign hamartoma of the anterior jaws esp. maxilla commonly associated w/ impacted tooth (max canine) à well circumscribed RL extending beyond CEJ (dentigerous cyst à CEJ) with occasional internal calcifications. Histo: CT capsule w/ duct-like spaces (glandular) in a nodular pattern, +/- Ca. Tx: conservative enuc. +/- preservation of any asociated impacted tooth.
Adenomatoid Odontogenic Tumor (AOT
Histo: Columnar odontogenic epithelium, basal cell nuclei = palisaded w/ reverse polarization, surrounding reminiscent “stellate reticulum.”
Ameloblastoma
Cementoblastoma is located on vital or non-vital teeth?
VITAL teeth
hamartoma à dense RADIOPACITY +/- impacted tooth w/ RL capsule
Odontoma
Resembles tooth (ant maxilla) Histo: ORGANIZED enamel, dentin, pulpal elements.
Compound Odontoma
HAPHAZARD aggangement (post jaws) Histo: haphazard elements.
Complex Odontoma
NON-aggressive ameloblastic-like tumor affecting the mandibular molar-ramus area of children and young adults. Tx: conservative excision/curettage.
Ameloblastic Fibroma
identical to Ameloblastic Fibroma but w/ HARD TISSUE IDUCTION = odontoma like radiopacities
Ameloblstic Fibro-odontoma
Mixed odontogenic tumors:
Odontoma, Ameloblastic Fibroma(odontoma).
1. Primary intraosseous carcinoma
2. Ameloblastic carcinoma/malignant ameloblastoma
3. Ameloblastic fibrosarcoma
4. Clear cell odontogenic carcinoma
Malignant Odontogenic Tumors
Radiolucent Pericoronal unilocular (radiographs):
Pericoronal unilocular: most are odontogenic
1.

hyperplastic dental follicle (<4mm)
2. Dentigerous cyst (>4mm)
3. OKC
4. AOT (teens, esp max canine)
5. less common
a. calcifying odontogenic cyst
b. ameloblastoma
c. ameloblastic fibroma
Radiolucent PA unilocular (radiographs):
Periapical unilocular: most are infectious
1. periapical granuloma (non-vital)
2. periapical cyst (non-vital)
3. cemental dysplasia (esp mand incisors black females)
4. periapical scar
Odontogenic myxoma, Central and Peripheral odontogenic fibroma, Cementoblastoma = epithelial or mesenchymal?
odontogenic benign mesenchymal tumors
Clinical: Very rare, mandible>maxilla, paresthesia, +/- swelling, unexplained tooth mobility.
Malignant Odontogenic Tumors
Radiographic: RL, ill-defined irregular margins
Malignant Odontogenic Tumors
Cementoblastoma will continue to grow if not removed? TRUE/FALSE?
TRUE: removal of affected teeth and bone
Odontoma, Ameloblastic Fibroma(odontoma) are:
Mixed odontogenic tumors
Radiolucent other unilocular lesion locations (radiographs)
Unilocular other locations:


developing tooth bud
radicular cyst (non-vital, lateral to root)
nasopalatine duct cyst
lateral periodontal cyst
residual cyst (edentulous)
OKC (small lesion)
CGCG (ant mand)
Stafne (static) bone defect (post mand below IAN)
ameloblastoma (esp cystic variant)
BFOLs (focal cementoosseous dysplasia, ossifying fibroma)
Radiolucent multilocular lesions (radiographs)
Multilocular:


M = multilocular cyst
A = ameloblastoma (ameloblastic fibroma – young pt)
C = CGCG
R = rare odontogenic tumors
O = OKC
M = myxoma (odontogenic)
A = aneurysmal bone cyst
C = cherubism
Mixed Radiolucent/Radiopaque lesions (radiographs)
Odontoma
BFOL (eg PCD, COD, ossifying fibroma)
calcifying odontogenic cyst
ameloblastic fibro-odontoma
CEOT
cementoblastoma