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. Cementifying fibroma
- B. Osteomas
- C. Paget's disease
- D. All of these
Explanation: A cementifying fibroma may present as a well-defined, slowly enlarging nodular mass arising in the alveolar region.
Correct answer: Cementifying fibroma- A. Keratocyst
- B. Periodontal cyst
- C. Aneurysmal cyst
- D. Hemorrhagic cyst
Explanation: Cholesterol crystals may be present in the lumen or fibrous wall of an odontogenic keratocyst and appear histologically as needle-shaped…
Correct answer: Keratocyst- A. Myxoma
- B. Odontoma
- C. Odontogenic adenomatoid tumour
- D. Cementifying fibroma
Explanation: The adenomatoid odontogenic tumour has a strong predilection for an unerupted canine in the anterior maxilla, especially in young females.
Correct answer: Odontogenic adenomatoid tumour- A. Arrhenoblastoma
- B. Astrocytoma
- C. Granular cell tumor
- D. Ameloblastoma
Explanation: Ameloblastoma is a true odontogenic tumour derived from odontogenic epithelium and commonly affects the posterior mandible.
Correct answer: Ameloblastoma- A. Calcifying epithelial odontogenic tumor
- B. Primordial cyst
- C. Calcifying epithelial odontogenic cyst
- D. Odontoma
Explanation: Liesegang rings are concentric calcification patterns classically found in the amyloid-containing stroma of a calcifying epithelial…
Correct answer: Calcifying epithelial odontogenic tumor- A. Transforms into dentigerous cyst
- B. Regresses after eruption of the tooth
- C. Is found in the place of the missing tooth
- D. Is a type of dentigerous cyst
Explanation: An eruption cyst is a soft-tissue cyst overlying an erupting tooth and usually disappears once the tooth emerges.
Correct answer: Regresses after eruption of the tooth- A. Gingival cyst of new born
- B. Apical periodontal cyst
- C. Lateral periodontal cyst
- D. Gingival cysts of adult
Explanation: The botryoid odontogenic cyst is a multilocular or grape-like variant of the lateral periodontal cyst.
Correct answer: Lateral periodontal cyst- A. Periapical cemental dysplasia
- B. Familial cemental dysplasia
- C. Hypercementosis
- D. Benign cementoblastoma
Explanation: Benign cementoblastoma is a true neoplasm formed by functional cementoblasts and is fused to the tooth root.
Correct answer: Benign cementoblastoma- A. Distinguishable tooth - like structures
- B. Radiolucent and radiopaque areas
- C. Masses of calcified areas
- D. Supernumerary teeth
Explanation: A compound odontoma produces multiple small, recognizable tooth-like structures on radiographs, often surrounded by a narrow radiolucent…
Correct answer: Distinguishable tooth - like structures- A. Mandibular premolar region
- B. Maxillary molar region
- C. Mandibular moral region
- D. Maxillary premolar region
Explanation: Ameloblastoma most commonly arises in the posterior mandible, especially the molar and ramus region.
Correct answer: Mandibular moral region- A. Hereditary internal polyposis
- B. Sturge weber syndrome
- C. Horner syndrome
- D. Basal cell nevus syndrome
Explanation: Basal cell nevus syndrome, also called Gorlin syndrome, combines multiple basal cell nevi, odontogenic keratocysts, bifid ribs and…
Correct answer: Basal cell nevus syndrome- A. Branchial cleft cyst
- B. Acanthomatous ameloblastoma
- C. Myxoma
- D. Simple ameloblastoma
Explanation: A branchial cleft cyst is a developmental non-odontogenic cyst, usually found in the lateral neck.
Correct answer: Branchial cleft cyst- A. Civattle bodies
- B. rushton bodies
- C. Guarneri bodies
- D. Russell bodies
Explanation: Rushton bodies are eosinophilic, linear or arc-shaped hyaline structures found in the epithelial lining of some odontogenic cysts…
Correct answer: rushton bodies- A. An impacted tooth
- B. A missing both
- C. A non-vital tooth
- D. An anomalous tooth
Explanation: A radicular cyst develops from inflammatory stimulation at the apex of a tooth with necrotic pulp, so association with a non-vital tooth…
Correct answer: A non-vital tooth- A. Cell rests of seirre
- B. Enamel organ
- C. Reduced enamel epithelium
- D. Cell rests of malassez
Explanation: The epithelial lining of most inflammatory radicular cysts arises from the cell rests of Malassez, remnants of Hertwig’s epithelial root…
Correct answer: Cell rests of malassez- A. Medial cyst
- B. Radicular cyst
- C. Follicular cyst
- D. Naso labial cyst
Explanation: The radicular cyst is the most common odontogenic cyst and develops from epithelial rests of Malassez at the apex of a non-vital tooth.
Correct answer: Radicular cyst- A. Warthins tumor
- B. Pindborg tumor
- C. Cylindroma
- D. Pleomorphic adenoma
Explanation: Adenoid cystic carcinoma was historically called cylindroma because of its characteristic cylindrical or cribriform tumour architecture.
Correct answer: Cylindroma- A. Connective tissue
- B. Aciner cells
- C. Myoepithelial cells
- D. Stem cells
Explanation: Pleomorphic adenoma contains both ductal epithelial and myoepithelial components, with the myoepithelial cells contributing greatly to its…
Correct answer: Myoepithelial cells- A. Delayed eruption of permanent teeth
- B. Bilateral
- C. Presence of Giant cell
- D. Unilocular lesion
Explanation: Cherubism usually produces bilateral, expansile multilocular jaw lesions containing numerous giant cells and may delay eruption of…
Correct answer: Unilocular lesion- A. Cherubism
- B. Fibrous dysplasia
- C. Craniofacial dysostosis
- D. Chondro-ectodermal dysplasia
Explanation: Cherubism is a hereditary, non-neoplastic jaw disorder that resembles central giant cell granuloma microscopically and usually affects…
Correct answer: Cherubism