Free Odontogenic Cysts and Tumours MCQs with Answers
129 Odontogenic Cysts and Tumours MCQs from Oral Pathology and Medicine, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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- A. A tumour from embrynomal cells of developing teeth
- B. Also known as Amebloblastoma
- C. All of the above
- D. is a complication of dentigerous cyst
Explanation: Adamantinoma is the older name for ameloblastoma, an odontogenic tumour derived from tooth-forming epithelial remnants.
Correct answer: All of the above- A. Anterior mandible
- B. Posterior maxilla
- C. Ramus of mandible
- D. Anterior maxilla
Explanation: Adenomatoid odontogenic tumour has a strong predilection for the anterior maxilla, often around an unerupted canine.
Correct answer: Anterior maxilla- A. Gorlin-Goltz syndrome
- B. Gardner's syndrome
- C. Goldenhar's syndrome
- D. Grinspan syndrome
Explanation: Multiple odontogenic keratocysts are a classic feature of Gorlin-Goltz syndrome, also called nevoid basal cell carcinoma syndrome.
Correct answer: Gorlin-Goltz syndrome- A. Orthokeratinised
- B. Non-Keratinised
- C. Parakeratinised
- D. Diskeratinised
Explanation: The parakeratinised odontogenic keratocyst has a more fragile, irregular lining, greater epithelial proliferation and a higher recurrence…
Correct answer: Parakeratinised- A. Peripheral palisading cellular strand with central loose stellate reticulum
- B. Peripheral palisading with central stromal retraction artefact
- C. Peripheral palisading cellular strand with peripheral loose stellate reticulum
- D. Central loose stellate reticulum shows marked nuclear atypia and numerous mitotic
Explanation: Conventional ameloblastoma shows peripheral palisading of columnar or cuboidal cells with a central stellate-reticulum-like area.
Correct answer: Peripheral palisading cellular strand with central loose stellate reticulum- A. Haw low recurrence rate
- B. Has low protein content
- C. High recurrence rate
- D. B and C
Explanation: An odontogenic keratocyst has a high recurrence rate because of its fragile lining and possible daughter cysts, not a low rate.
Correct answer: Haw low recurrence rate- A. Primordial cyst
- B. Clacifying epithelial odontogenic cyst
- C. Keratocyst
- D. Dentigerous cyst
Explanation: Dentigerous cysts, calcifying epithelial odontogenic cysts, and keratocysts may be associated with impacted teeth.
Correct answer: Primordial cyst- A. It is more common in mandible
- B. Low recurrence rate
- C. May be filled with thin straw coloured fluid
- D. Expansion of bone clinically seen
Explanation: Keratocysts characteristically have a high recurrence rate, so a low recurrence rate is the exception.
Correct answer: Low recurrence rate- A. Dental cyst
- B. Dentigerous cyst
- C. Keratocyst
- D. Simple bone cyst
Explanation: An odontogenic keratocyst commonly develops as a multilocular radiolucency, especially when large.
Correct answer: Keratocyst- A. Keratocyst
- B. Periapical cyst
- C. Nasoalveolar cyst
- D. Globulamaxilary cyst
Explanation: Among these choices, the odontogenic keratocyst has the highest recurrence rate because its thin lining is easily left behind and…
Correct answer: Keratocyst- A. Increased mitotic activity of the epithelial lining
- B. Presence of satellite cysts or daughter cysts
- C. Friability of the epithelial lining
- D. Continued proliferation of rests of dental lamina
Explanation: Satellite or daughter cysts can remain in the surrounding cancellous bone and later form new keratocysts, making them a major explanation…
Correct answer: Presence of satellite cysts or daughter cysts- A. CEOT
- B. Enameloma
- C. Ameloblastoma
- D. Odontoma
Explanation: Robinson classically described ameloblastoma as a unicentric, non-functional, anatomically benign but clinically persistent tumour.
Correct answer: Ameloblastoma- A. Sun-burst appearance
- B. Onion - peel appearance
- C. Cherry -blossom appearance
- D. Driven-snow appearance
Explanation: Calcifying epithelial odontogenic tumour, or Pindborg tumour, typically shows a mixed radiolucent-radiopaque lesion with fine…
Correct answer: Driven-snow appearance- A. Multicentric
- B. Non-Functional
- C. Anatomically benign
- D. clinically persistent
Explanation: Robinson's classic description includes unicentric, non-functional, anatomically benign, and clinically persistent features.
Correct answer: Multicentric- A. In teeth in which crown development is completed
- B. In place of missing teeth
- C. In periapical region
- D. In mandibular body
Explanation: A primordial cyst classically develops instead of a tooth, usually where a tooth failed to form or was absent.
Correct answer: In place of missing teeth- A. Occurs due to infection periapically
- B. Has low recurrence rate
- C. Can be treated by aspiration
- D. Is developmental in origin
Explanation: An odontogenic keratocyst develops from remnants of the dental lamina, so it is developmental rather than periapical inflammatory in…
Correct answer: Is developmental in origin- A. Ameloblastoma
- B. Adeno carcinoma
- C. Fibrosarcoma
- D. All of the above
Explanation: A dentigerous cyst is associated with an unerupted tooth and, rarely, its epithelial lining may give rise to an ameloblastoma.
Correct answer: Ameloblastoma- A. Median palatal
- B. Nemorrhagic cyst
- C. Globulomaxillary
- D. Nasolabial
Explanation: A hemorrhagic or traumatic bone cyst is a pseudocyst because it lacks an epithelial lining, despite being called a cyst.
Correct answer: Nemorrhagic cyst- A. Squamous cell carcinoma
- B. Osteogenic sarcoma
- C. Adamantinoma
- D. Osteoclastoma
Explanation: Adamantinoma, the older name for ameloblastoma, is the classic most common odontogenic tumour of the mandible among these choices.
Correct answer: Adamantinoma- A. Tennis racket
- B. Irregular
- C. Linear
- D. Picket fence
Explanation: The lining of a primordial cyst, now usually termed an odontogenic keratocyst, has a continuous palisaded basal layer resembling a picket…
Correct answer: Picket fence