Important Info Canvas Ex1 (relevant for final) Flashcards
(20 cards)
(T/F) When the follicular space around a developing 3rd molar is 5mm, a hyperplastic follicle is more likely than a dentigerous cyst
False
One of your pt just had a baby and noticed multiple white 3-5mm bumps on the newborn’s gingiva. What is your Dx, appropriate Tx for this condition, if biopsied what would you expect to see?
Dental Lamina Cyst of the Newborn, No Tx, Keratin-filled cysts arising from remnants of dental lamina that spontaneously marsupialize
Which of the following features partially account for the high occurrence rate seen in odontogenic Keratocyst?
Satellite cysts
Dentigerous cysts are attached to teeth:
CEJ
(T/F) Dentigerous cysts can become malignant
True
(T/F) The glandular odontogenic cyst should be treated like any other developmental odontogenic cyst
false
This 6 yo child has developed swelling of the gingiva overlying the erupting maxillary
incisors. No infrabony pathology was seen around the erupting teeth. What is the Dx?
eruption cyst
Which of the following is an odontogenic cyst?
Gorlin cyst
calcifying odontogenic cyst
Fill in: The Rest of ___ are remnants of ___, which remain in the periodontal ligament
and give rise to most odontogenic cysts.
Malassez, Hertwigs Epithelial Root Sheath
An odontogenic Keratocyst can look identical to which of the following on a radiograph?
A. ameloblastoma
B. periapical cyst
C. lateral periodontal cyst
D. dentigerous cyst
E. All of the above
E. All of the above
Which of the following has the lowest recurrence rate?
Adenomatoid odontogenic tumor
What is an appropriate treatment for a 4cm diameter multilocular infrabony
ameloblastoma of the right posterior mandible?
a. Segmental resection – a discontinuity procedure
b. The treatment of ameloblastoma is surgical excision. This may require removal
of a large segment of the jaws. Simple curettage is usually met with recurrence
c. Depending on location and size there is a possibility of end block resection
A 8 yo is referred to the oral surgery clinic for evaluation of an expansile lesion located in
the right body of the mandible. A panoramic radiograph revealed a peri-coronal
radiolucency associated with an impacted second premolar. On biopsy, histology
revealed long strands and cords of odontogenic epithelium resembling dental lamina in
an immature mesenchymal stroma. What is your Dx?
Ameloblastic fibroma
A 50 yo female presents to your office with missing teeth #27 and #28. She has noticed a
“bump” slowly increasing in size on her lower jaw. A panoramic radiograph is attached
showing your radiographic findings. On biopsy, multiple epithelial islands were seen,
containing amyloid-like protein and calcified Liesegang rings. What is your Dx?
Calcifying epithelial odontogenic (Pindborg) tumor
Rank the following in order of least aggressive (1) to most aggressive (4): Complex
Odontoma, Calcifying epithelial odontogenic (Pindborg) tumor, Ameloblastoma,
Squamous odontogenic tumor
a. 1. Complex Odontoma
b. 2. Squamous odontogenic tumor
c. 3. Calcifying epithelial odontogenic (Pindborg) tumor
d. 4. Ameloblastoma
A 26 yo male presented to your office for a check-up. You noticed a periapical
radiolucency around #23 root. The tooth and adjacent teeth test vital, and no symptoms
were reported by the pt. therefore, you refer him for a biopsy, which showed a cyst lined
by epithelium uniform 6-8 cell layers thick and surfaced by wavy parakeratin. The basal
cell layer was prominently palisaded. What is Dx?
Odontogenic Keratocyst
Which of the following is a mesenchymal tumor?
Cementoblastoma
A pt presents to your office with expansion of the right mandible so you referred him to
an oral surgeon for biopsy. The attached images include the pre-operative radiograph
and a histologic image showing islands of epithelium rimmed by cells containing
palisaded hyperchromatic nuclei, reverse nuclear polarity, and subnuclear vacuoles.
What is your Dx and what can we call these histologic features?
These are signs of Early Ameloblastoma and Vickers-Gorlin changes
All of the following are appropriate differential Dx for the radiograph EXCEPT
a. Ameloblastoma
b. Glandular odontogenic cyst
c. Odontogenic myxoma
d. Ameloblastic fibroma
e. Squamous odontogenic tumor
e. Squamous odontogenic tumor
One of the multiple radiolucent lesions seen on this panoramic radiograph of a 15 yo
Male was biopsied, and the histology showed a cyst with palisaded basal cell layer and
satellite cysts in the walls. This young man should be evaluated for ____. Name 4 other
clinical signs associated with this condition.
a. Nevoid basal cell carcinoma syndrome
b. 1. Bifid ribs
c. 2. Skin tumors (multiple, early onset basal cell carcinoma)
d. 3. CNS: Medulloblastoma (neoplasms)
e. 4. Dyskeratotic palmar/plantar pits
