Oral Pathology MCQs
Oral Pathology MCQs cover the diseases affecting the oral cavity, including tumors, precancerous conditions, cysts, and inflammatory diseases. These quizzes help students of BDS and MDCAT assess their ability to diagnose and understand oral conditions and prepare for clinical scenarios.
Q: The most common site of a mucocele is the
A) Tongue
B) Upper lip
C) Lower lip
D) Buccal mucosa
✅ Correct Answer: C
Explanation: Mucoceles frequently occur on the lower lip due to trauma to minor salivary glands, leading to mucus extravasation.
Q: Perineural invasion is a feature often associated with
A) Mucocele
B) Adenoid cystic carcinoma
C) Hemangioma
D) Pleomorphic adenoma
✅ Correct Answer: B
Explanation: Adenoid cystic carcinoma tends to invade nerves, contributing to pain and poor prognosis.
Q: A painless, slow-growing bluish lesion on the floor of the mouth is likely a
A) Ranula
B) Dermoid cyst
C) Hemangioma
D) Mucocele
✅ Correct Answer: A
Explanation: Ranulas are mucoceles of the sublingual gland presenting as bluish swellings in the floor of the mouth.
Q: Onion-skin pattern around bone cortex is typically seen in
A) Osteosarcoma
B) Osteomyelitis
C) Chondrosarcoma
D) Ewing’s sarcoma
✅ Correct Answer: D
Explanation: Ewing’s sarcoma presents radiographically with layers of periosteal bone deposition resembling an onion-skin appearance.
Q: Actinomycosis in the jaw is most frequently associated with
A) Staphylococcus aureus
B) Candida albicans
C) Streptococcus mutans
D) Actinomyces israelii
✅ Correct Answer: D
Explanation: Actinomycosis is a chronic granulomatous infection caused by Actinomyces israelii, often following trauma or tooth extraction.
Q: Condyloma acuminatum in the oral cavity is caused by
A) Herpes simplex virus
B) Epstein-Barr virus
C) Cytomegalovirus
D) Human papillomavirus
✅ Correct Answer: D
Explanation: Condyloma acuminatum is a benign wart-like lesion caused by HPV, typically types 6 and 11.
Q: Palatal petechiae are often seen in
A) Pemphigus vulgaris
B) Herpangina
C) Erythema multiforme
D) Infectious mononucleosis
✅ Correct Answer: D
Explanation: Infectious mononucleosis frequently causes palatal petechiae due to vascular fragility from Epstein-Barr virus infection.
Q: Sjögren’s syndrome is primarily characterized by
A) Salivary gland hypofunction
B) Oral ulcerations
C) Cyst formation
D) Gingival hyperplasia
✅ Correct Answer: A
Explanation: Sjögren’s syndrome involves autoimmune destruction of salivary and lacrimal glands, causing dry mouth and dry eyes.
Q: A premalignant lesion that shows red patches in the oral cavity is termed
A) Leukoedema
B) Leukoplakia
C) Lichen planus
D) Erythroplakia
✅ Correct Answer: D
Explanation: Erythroplakia is a red lesion with a higher likelihood of harboring dysplasia or carcinoma than leukoplakia.
Q: The most frequent site for oral melanoma is the
A) Buccal mucosa
B) Hard palate
C) Dorsal tongue
D) Gingiva
✅ Correct Answer: B
Explanation: Oral melanomas most often occur on the hard palate and gingiva and are often diagnosed at advanced stages.