NDHCE General and Oral Pathology 3

Question 1

Which autoimmune blistering disease is characterized by suprabasilar acantholysis and positive Nikolsky's sign in the oral cavity?

Accepted Answer

Pemphigus vulgaris

Answer

Mucous membrane pemphigoid

Answer

Bullous pemphigoid

Answer

Erythema multiforme

Question 2

Paget's disease of bone affecting the jaw would most likely produce which radiographic finding?

Accepted Answer

'Cotton wool' appearance

Answer

Ground-glass opacity with loss of lamina dura

Answer

Floating teeth pattern

Answer

Sun-ray pattern

Question 3

A patient with Addison's disease (primary adrenal insufficiency) may exhibit which distinctive oral finding?

Accepted Answer

Multifocal melanin pigmentation

Answer

Geographic tongue

Answer

Hairy tongue

Answer

Torus mandibularis

Question 4

Which feature differentiates a pyogenic granuloma from an irritation fibroma clinically and histologically?

Accepted Answer

High vascularity and tendency to bleed

Answer

Presence of bone formation

Answer

Location on keratinized gingiva

Answer

Association with systemic disease

Question 5

Fordyce spots in the oral cavity represent which anatomical variant?

Accepted Answer

Sebaceous glands without associated hair follicles

Answer

Ectopic minor salivary glands

Answer

Lymphoid aggregates

Answer

Melanocyte clusters

Question 6

Which condition involves replacement of normal stratified squamous epithelium by columnar-type epithelium in response to chronic irritation, representing a form of metaplasia?

Accepted Answer

Squamous metaplasia

Answer

Dyskeratosis

Answer

Acanthosis

Answer

Epidermoid metaplasia

Question 7

Oral submucous fibrosis (OSMF), a premalignant condition, is most strongly associated with habitual use of which substance?

Accepted Answer

Areca nut (betel quid)

Answer

Tobacco smokeless chew

Answer

Alcohol

Answer

Khat (Catha edulis)