Free Oral Mucosal Lesions MCQs with Answers

• A. All of the above
• B. Subsidiary infections
• C. Subclinical infections
• D. Secondary infections

Explanation: Oral candidiasis is commonly classified as primary when confined to the mouth and secondary when it occurs as part of a systemic or…

• A. Cryptococcus
• B. Histoplasmosis
• C. Blastomycosis
• D. Paracoccidiomycosis

Explanation: Cryptococcus neoformans has a prominent gelatinous polysaccharide capsule that stains positively with mucicarmine.

• A. Acute pseudomembranous candidiasis
• B. Chronic hyperplastic candidiasis
• C. Chronic atrophic candidiasis
• D. Acute atrohpic candidiasis

Explanation: Chronic hyperplastic candidiasis produces persistent white plaques that may resemble leukoplakia and cannot be readily wiped away.

• A. Acute Pseudo Membranous
• B. Acute Atrophic
• C. Chronic Hyperplastic
• D. Chonic atrophic

Explanation: Denture-associated candidiasis is usually chronic atrophic candidiasis, also called denture stomatitis, presenting as erythema beneath the…

• A. median rhomboidal glossitis
• B. migrating geographic tongue
• C. Prolonged tetracycline therapy
• D. All of the above

Explanation: Candida is classically associated with median rhomboid glossitis, a depapillated erythematous area on the midline dorsum of the tongue.

• A. Clobetasol
• B. Miconazole
• C. Co-trimoxozle
• D. Penicillin

Explanation: Miconazole is an antifungal that inhibits fungal ergosterol synthesis and is commonly used for oral candidiasis.

• A. Mucor
• B. Treponema
• C. Candida
• D. Aspergillus

Explanation: A chronic fissure or ulcer at the mouth corner is angular cheilitis, in which Candida is a common cultured organism, often with local…

• A. Characteristic odour
• B. Response to injection of vitamin B12
• C. Demonstration of mycelia and spores in scrapping
• D. Demonstration of ray fungus in granules

Explanation: Candidiasis is supported by scraping the lesion and demonstrating Candida pseudohyphae or mycelia with spores, usually using a potassium…

• A. Erythroplakia
• B. Pemphigus vulagaris
• C. Leukoplakia
• D. Oral thrush

Explanation: Pseudomembranous candidiasis produces white plaques that can be wiped or peeled away, leaving a painful red or bleeding surface.

• A. Acute pseudomembranous candidiasis
• B. Acute atrophic candidiasis
• C. chronic atrophic candidiasis
• D. chronic hyperplastic candidiasis

Explanation: Thrush is the traditional name for acute pseudomembranous candidiasis, characterised by removable creamy-white plaques.

• A. histoplasmosis
• B. cryptococcosis
• C. candidiasis
• D. coccidiomycosis

Explanation: Pseudomycelium and chlamydospores in a mucosal scraping are characteristic microscopic forms of Candida.

• A. It can affect neonates in an epidemic fashion
• B. It is characterized by a plaque of proliferating epithelial and other cells
• C. It is a complication of immunosuppression or systemic diseases
• D. It is caused by a gram-negative fungus

Explanation: Candida is a fungus, not a gram-negative organism, so statement A is false.

• A. Phantoguesia
• B. Dysguesia
• C. Cocoguesia
• D. Ageusia

Explanation: Phantogeusia is the perception of taste without an external stimulus. Ageusia means complete loss of taste, while dysgeusia means an…

• A. Intrathecal
• B. Oral
• C. Subdermal
• D. Intravenous

Explanation: The oral route is preferred for chronic pain because it is convenient, non-invasive and allows sustained dosing.

• A. Culture with giemsa stain:
• B. Culture with wright strain
• C. Flourescent stain for cytology
• D. Routing cytology

Explanation: Herpes simplex can be demonstrated in a cytological smear by immunofluorescent staining, which detects viral antigen in infected cells.

• A. Ranula
• B. Diabetes mellitus
• C. Pernicious anaemia
• D. Local irritation

Explanation: Burning tongue may accompany diabetes, pernicious anaemia and local irritants, but a ranula is a mucous retention pseudocyst and does not…

• A. Molluscum contagiosum
• B. All of the above
• C. Squamous papilloma
• D. Focal epithelial hyperplasia

Explanation: Molluscum contagiosum, focal epithelial hyperplasia and squamous papilloma are all virus-induced epithelial proliferations caused by…

• A. Trigeminal neuralgia
• B. Sicca syndrome
• C. Dry socket
• D. Myospherulosis

Explanation: Alveolitis sicca dolorosa is the painful post-extraction condition caused by loss or breakdown of the socket blood clot, commonly called…

• A. Lip reading
• B. Lip Schutz bodies
• C. Lip pits
• D. Lip prints

Explanation: The grooves and patterns of lip prints, known as cheiloscopy, can be recorded and compared for forensic identification.

• A. Corynebacterium
• B. Staphylococcus aureus
• C. Candida
• D. Vincent's angina

Explanation: Corynebacterium diphtheriae, Candida, and Vincent’s angina can produce adherent membranes or pseudomembranes in the pharynx.