All Free Oral Pathology and Medicine MCQs with Answers

• A. Actinomycosis
• B. Ludwig's angina
• C. Mucormycosis
• D. Cellulitis

Explanation: Cervicofacial actinomycosis produces a firm, woody swelling around the mandibular angle with multiple draining sinus tracts.

• A. AIDS
• B. Tuberculosis
• C. Syphilis
• D. Leukemia

Explanation: Oral tuberculosis is uncommon, although painful ulcers, nodules, or granulomatous lesions can occur.

• A. Gumma
• B. Koplik spot
• C. Mucous patcl
• D. Tabes dorsalis

Explanation: Mucous patches are oral lesions of secondary syphilis and are highly infectious because they contain abundant Treponema pallidum.

• A. scarlet fever
• B. measles
• C. syphilis
• D. typhoid

Explanation: Scarlet fever classically causes a strawberry tongue, beginning with a coated tongue and progressing to prominent red papillae.

• A. Tongue
• B. Gingiva
• C. Hard palate
• D. Soft palate

Explanation: Leprosy may involve the tongue and hard or soft palate, whereas gingival involvement is characteristically absent or exceptionally…

• A. Arachnia propionica
• B. Bifidobacterium dentium
• C. Bartonella henselae
• D. Mycobacterium laprae

Explanation: Parinaud oculoglandular syndrome is classically an atypical manifestation of cat-scratch disease caused by Bartonella henselae.

• A. Actinomycosis
• B. Histoplasmosis
• C. Scrofuloderma
• D. Syphilis

Explanation: A painless palatal perforation should raise early suspicion of a syphilitic gumma, a destructive tertiary lesion.

• A. Glandular fever
• B. Acute herpetic gingivostomatitis
• C. Scarlet fever
• D. Rubella

Explanation: Kissing disease is infectious mononucleosis, commonly called glandular fever because it causes prominent lymphadenopathy, especially in…

• A. Ankylosis
• B. Spasm of masseter mucle
• C. Auspitz's sign
• D. Nikolsky's sign

Explanation: Lockjaw, or trismus, results from sustained spasm of the muscles of mastication, particularly the masseter, classically in tetanus.

• A. is commonly seen among Indian population
• B. is a self limiting lesion
• C. has oral ulcerations similar to major apthous ulceration
• D. is usually treated with Erythromycin

Explanation: Crohn's disease may produce recurrent oral ulcers that clinically resemble major aphthous ulcers, along with mucosal swelling and other…

• A. Tuberculosis
• B. Cat scratch disease
• C. Leprosy
• D. Sarcoidosis

Explanation: The Kveim-Siltzbach test was historically used to support the diagnosis of sarcoidosis by producing a sarcoidal granulomatous response…

• A. All of the above
• B. Sweet syndrome
• C. PFAPA (periodic fever acute pharyngitis apthous stomatitis)
• D. Bechets syndrome

Explanation: Aphthous-like ulcers can occur in Behçet syndrome, Sweet syndrome, and PFAPA, so all listed conditions are recognised associations.

• A. Recurrent allergic reactions
• B. Recurrent bacterial infections
• C. Implicit allergic reactions
• D. implicit bacterial infections

Explanation: Antibody deficiency impairs humoral immunity, especially defence against encapsulated pyogenic organisms, so recurrent bacterial…

• A. painless
• B. Asymptomatic
• C. itching
• D. painful

Explanation: An oral tuberculous ulcer is typically painful, indurated, and irregular, most often involving the tongue.

• A. No pain
• B. Pain
• C. Itching
• D. Burning sensation

Explanation: Mucous patches of secondary syphilis are usually multiple, grayish-white, slightly raised plaques and are often asymptomatic.

• A. Buccal mucosa
• B. Tongue
• C. Lips
• D. Palate

Explanation: The tongue is the commonest oral site of tuberculosis, usually presenting as a painful ulcer caused by direct infection or secondary…

• A. Trauma
• B. Tuberculosis
• C. Primary syphilis
• D. Herpes

Explanation: The primary syphilitic lesion, or chancre, is classically a painless ulcer with regional lymphadenopathy.

• A. 6 weeks
• B. 9 weeks
• C. 13 weeks
• D. 1 weeks

Explanation: Secondary syphilis usually develops about 6 weeks after the primary chancre, although the interval can vary with healing and host factors.

• A. Clostridium Tetani
• B. Streptococci
• C. Diphtheria
• D. Staphylococci

Explanation: Clostridium tetani produces a neurotoxin that causes sustained muscle rigidity and spasms, with masseter spasm producing the classic…

• A. Primary stage of syphilis
• B. Secondary stage of syphilis
• C. Tertiary stage of syphilis
• D. Primary tuberculosis

Explanation: A gumma is a granulomatous destructive lesion of late syphilis and therefore belongs to the tertiary stage.