Free Oral Mucosal Lesions MCQs with Answers

• A. Mast cells
• B. Lymphocytes
• C. Giant cells
• D. Neutrophilis

Explanation: Lymphocytes are the predominant cells commonly encountered in a chronic inflammatory granuloma, although macrophages, epithelioid cells…

• A. Absence of capsule
• B. Mixed origin
• C. Presence of an incomplete capsule
• D. Perineural spread

Explanation: Pleomorphic adenoma often has an incomplete capsule and may send microscopic pseudopod-like extensions into surrounding tissue.

• A. Mucocele
• B. Dentigerous cyst
• C. Dermoid cyst
• D. Ranula

Explanation: A ranula is a mucus extravasation or retention lesion in the floor of the mouth, usually arising from obstruction or rupture of the…

• A. Salivary gland & duct
• B. Salivary gland
• C. Salivary duct only
• D. Salivary gland tumours

Explanation: Sialography introduces contrast into a salivary duct and outlines both the ductal system and the glandular tissue, allowing abnormalities…

• A. Sublingual gland
• B. Submandibular gland
• C. Ranula
• D. Cervical lymph nodes when they are enlarged due to inflammation

Explanation: The submandibular gland lies partly around the posterior border of the mylohyoid muscle, so it is best examined between one finger inside…

• A. Carcinoma of the parotid gland
• B. A pleomorphic adenoma of parotid gland
• C. An adenolymphoma of the parotid gland
• D. None of the above

Explanation: Warthin tumour is an adenolymphoma, classically arising in the parotid and containing epithelial and lymphoid components.

• A. palate
• B. dorsum of tongue
• C. cheeks
• D. gingival

Explanation: Necrotizing sialometaplasia most often affects the posterior hard palate or the hard–soft palate junction, where minor salivary glands are…

• A. Palate
• B. Cheek
• C. Tongue
• D. Neck

Explanation: The palate is the commonest site for salivary gland tumours arising in an ectopic or minor-gland location, particularly because it…

• A. Epidemic parotitis
• B. Iodine mumps
• C. Nutritional mumps
• D. Nonspecific mumps

Explanation: Chemical mumps is an acute, usually noninfectious swelling of the salivary glands caused by substances such as iodinated compounds, so it…

• A. Are common cause of acute parotitis
• B. Are commonest in the parotid ducts
• C. produce pain on eating
• D. Are associated with hypercaleaemic statesTrack Health Symptoms

Explanation: A salivary stone obstructs flow when eating stimulates secretion, producing characteristic meal-time pain and swelling.

• A. Unaffected
• B. Increased in morning & decrease in dayConsult Online Doctors
• C. High
• D. Low

Explanation: Reduced salivary flow in xerostomia lowers bicarbonate buffering, so salivary pH tends to become acidic or low.

• A. PalateExplore Anatomy Models
• B. Upper lip
• C. Floor of the mouth
• D. Buccal mucosa

Explanation: The palate is the commonest intraoral site for pleomorphic adenoma, especially the junction of the hard and soft palate.

• A. Mucoepidermoid carcinoma
• B. Basal cell adenocarcinoma
• C. Adenoid Cystic carcinoma
• D. Salivary duct carcinoma

Explanation: Basal cell adenocarcinoma is generally a low-grade salivary malignancy, unlike salivary duct carcinoma and many adenoid cystic carcinomas.

• A. Patrotid
• B. Submanidbular
• C. Sublingual
• D. Minor

Explanation: Minor salivary gland tumours have the highest proportion of malignancy, followed by sublingual and submandibular gland tumours.

• A. Mucoepidermoid carcinoma
• B. Adenoid cystic carcinoma
• C. Pleomorphic adenoma
• D. Warthin's tumourExplore Anatomy Models

Explanation: Mucoepidermoid carcinoma contains mucous, epidermoid, and intermediate cells, with the mixture varying by tumour grade.

• A. Pleomorphic adenoma
• B. Warthin tumour
• C. Acinic cell tumour
• D. Mucoepidermoid carcinoma

Explanation: Warthin tumour has cystic spaces lined by a characteristic double layer of oncocytic epithelial cells supported by lymphoid stroma.

• A. Dentigerous cyst
• B. Odontogenic deratocyst
• C. Papillary cystadenoma lymphomatosum
• D. Unicystic ameloblastoma

Explanation: Papillary cystadenoma lymphomatosum, or Warthin tumour, contains cystic spaces that may hold thick brown or chocolate-coloured fluid.

• A. Calcium chloride
• B. Potassium cloride
• C. Unknown compounds of phosphats
• D. Hydroxyapatitie

Explanation: Sialoliths are mainly mineralised calcium phosphate deposits, with hydroxyapatite among their principal crystalline components.

• A. Adeno carcinoma
• B. Warthin's tumour
• C. Adeno cystic lymphoma
• D. Pleomorphic adenoma

Explanation: Adenolymphoma is the older name for Warthin tumour, a benign salivary neoplasm containing epithelial tissue and a prominent lymphoid…

• A. Most common in submandibular gland
• B. Usually malignant
• C. Most common in parotid gland
• D. Associated with calculi

Explanation: The classic mixed tumour, pleomorphic adenoma, occurs most often in the parotid gland and is usually benign.