AGD Oral Diagnosis and Pathology 5

Question 1

Fordyce spots are best described as:

Accepted Answer

Ectopic sebaceous glands visible as yellowish papules on the buccal mucosa

Answer

Fordyce spots are ectopic sebaceous glands that appear as multiple, asymptomatic yellowish papules on the buccal mucosa and lips, representing a normal anatomic variant.

Question 2

A patient with a history of celiac disease presents with recurrent aphthous ulcers. The most appropriate first step is:

Accepted Answer

Check serum ferritin, folate, B12, and zinc levels

Answer

Celiac disease causes malabsorption of iron, folate, B12, and zinc, which are implicated in recurrent aphthous stomatitis; correcting deficiencies often reduces ulcer frequency.

Question 3

'Cotton-wool' appearance on skull radiographs in an elderly patient with jaw pain and elevated serum alkaline phosphatase suggests:

Accepted Answer

Paget disease of bone

Answer

Paget disease produces a mixed radiolucent-radiopaque 'cotton-wool' appearance due to alternating bone resorption and deposition, with elevated alkaline phosphatase.

Question 4

Hairy leukoplakia occurs predominantly on which oral site and is caused by which virus?

Accepted Answer

Lateral tongue; Epstein-Barr virus

Answer

Hairy leukoplakia presents as white corrugated (hairy) lesions on the lateral tongue and is caused by EBV replication in immunocompromised patients.

Question 5

Which type of leukoplakia carries the highest risk of malignant transformation?

Accepted Answer

Speckled (erythroleukoplakia)

Answer

Speckled leukoplakia (erythroleukoplakia) has the highest malignant transformation risk among leukoplakia subtypes due to its mixed white and red components.

(AGD) Academy of General Dentistry Certification Practice Test

(AGD) Academy of General Dentistry Certification Practice Test

AGD Oral Diagnosis and Pathology 5