ADAT Oral Pathology & Diagnosis

Question 1

Which oral lesion presents as a white patch that cannot be wiped off and is considered a potentially malignant disorder?

Accepted Answer

Leukoplakia

Answer

Pseudomembranous candidiasis

Answer

Leukoedema

Answer

Fordyce granules

Question 2

A patient presents with multiple painful oral ulcers, a vesicular rash on the hands and feet, and fever. What is the most likely diagnosis?

Accepted Answer

Hand, foot, and mouth disease (HFMD)

Answer

Primary herpetic gingivostomatitis

Answer

Herpangina

Answer

Erythema multiforme

Question 3

Ameloblastoma is most commonly found in which location?

Accepted Answer

Posterior mandible in the molar-ramus region

Answer

Anterior maxilla near the nasal floor

Answer

Midpalatal region associated with tooth roots

Answer

Anterior mandible between the mental foramina

Question 4

Which radiographic finding is characteristic of a dentigerous cyst?

Accepted Answer

Well-defined unilocular radiolucency surrounding the crown of an unerupted tooth

Answer

Periapical radiolucency associated with a non-vital tooth

Answer

Multilocular radiolucency with scalloped borders (soap-bubble appearance)

Answer

Root resorption with lateral radiolucency along the root surface

Question 5

A biopsy shows 'squamous epithelium with keratin pearl formation, individual cell keratinization, and intercellular bridges.' What is the diagnosis?

Accepted Answer

Well-differentiated squamous cell carcinoma

Answer

Mucoepidermoid carcinoma

Answer

Adenoid cystic carcinoma

Answer

Verrucous carcinoma

Question 6

Which systemic condition is most commonly associated with multiple periapical cemento-osseous dysplasia lesions in African American women?

Accepted Answer

No systemic disease — it is a benign, reactive condition of unknown cause

Answer

Hyperparathyroidism

Answer

Paget's disease of bone

Answer

Fibrous dysplasia