All Free Oral Pathology and Medicine MCQs with Answers

• A. Macrostomia
• B. Cleft lip and palate
• C. Fetal alcohol syndrome
• D. Ectodermal dysplasia

Explanation: Cleft lip with or without cleft palate is the most common major congenital malformation affecting the face and jaws.

• A. Fibromatosis gingiva
• B. Focal epithelial hyperplasia
• C. Oral melanotic macule
• D. Hereditary intestinal polyposis syndrome

Explanation: Heck disease is focal epithelial hyperplasia, a benign HPV-related lesion producing multiple small papules or nodules of the oral mucosa.

• A. Tuberculum impar and lateral lingual swellings
• B. Hypobranhiral eminence and tuberculum impar
• C. The two lateral lingual swellings
• D. Some of the above

Explanation: The tongue develops when the two lateral lingual swellings fuse in the midline, so failure of their fusion produces a bifid tongue.

• A. Black hairy tongue
• B. Median rhomboid glossitis
• C. Geographic tongue
• D. Fissured tongue

Explanation: Broad-spectrum antibiotics disturb the normal oral flora and can allow chromogenic organisms to colonise the filiform papillae, producing…

• A. Absence of lingual frenum
• B. Union between tongue and floor of mouth
• C. Lingual frenum attached to the tip of tongue
• D. Short lingual frenum

Explanation: True ankyloglossia involves an abnormal union or attachment of the tongue to the floor of the mouth.

• A. Frey
• B. Teacher Collins
• C. Melkerson-Rosenthal
• D. None of the above

Explanation: Melkersson-Rosenthal syndrome classically combines recurrent facial edema, granulomatous cheilitis and a fissured or plicated tongue.

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

Explanation: Oral keratoacanthoma is rare but occurs most often on the lip, particularly the lower lip.

• A. Complete obstruction to minor salivary gland orifices
• B. Keratinization with partially occluded minor salivary glands
• C. Diffuse parakeratinization of the palate
• D. Excessive orthokeratinization of the palate

Explanation: Nicotine stomatitis causes palatal keratinization and inflammation around partially blocked minor salivary gland ducts, producing white…

• A. Neurofibroma
• B. Fibromyoma
• C. Fibrolipoma
• D. Fibroadenoma

Explanation: Fibroadenoma is composed of fibrous connective tissue combined with glandular or epithelial tissue.

• A. Tzanck smear
• B. Polymerase chain reaction
• C. In situ hybridization
• D. Electron microscopy

Explanation: Tzanck smear shows cytological changes such as ballooning degeneration but does not identify Epstein-Barr virus.

• A. Oral hairy leukoplakia
• B. White spongy nevus
• C. Aspirin burn
• D. Pseudomembranous Candidiasis

Explanation: White sponge naevus produces diffuse, thickened, folded, soft or spongy white mucosa, commonly on the buccal mucosa.

• A. Palate
• B. Alveolar ridge
• C. Gingiva
• D. Floor of the mouth

Explanation: Peripheral giant cell granuloma arises from periodontal ligament or periosteal tissues, so it occurs most often on the gingiva or…

• A. Leukoedema
• B. Oral lichen planus
• C. Erythema multiforme
• D. Oral dubmucous fibrosis

Explanation: Areca nut chewing is a major etiological factor for oral submucous fibrosis, a chronic progressive fibrotic disorder with mucosal…

• A. Macule
• B. Papule
• C. Plaque
• D. Vesicle

Explanation: A papule is a small, solid, raised lesion that can be palpated above the epithelial surface.

• A. Lymphoma
• B. Melanoma
• C. lymphangioma
• D. Leukemia

Explanation: Lymphangioma is a benign malformation or tumour of lymphatic vessels, often presenting as a soft, pebbly oral lesion.

• A. Increase in mitotic division
• B. Increase in thickness of superficial layer
• C. Disruption of basal lamina
• D. Increase in thickness of spinous layer

Explanation: Acanthosis means increased thickness of the stratum spinosum, producing epithelial thickening.

• A. Nicotinic stomatitis
• B. Leukoplakia
• C. Fovea Palatine
• D. Erythroplakia

Explanation: Nicotinic stomatitis causes diffuse palatal erythema with swelling and redness around the openings of minor salivary glands, often from…

• A. Traumatic neuroma
• B. Neurofibroma
• C. Trigeminal neuralgia
• D. Neuroleiomyoma

Explanation: A painful, mobile mass developing near a previously fractured mental foramen strongly suggests a traumatic neuroma, which is a reactive…

• A. Pleomorphic adenoma
• B. Papilloma
• C. Nevus
• D. Fibroma

Explanation: A solitary white, rough, pedunculated palatal lesion is typical of a squamous papilloma, which commonly has a papillary or verrucous…

• A. Osteoma
• B. Irritation fibroma
• C. Traumatic neuroma
• D. Peripheral ossifying fibroma

Explanation: Peripheral ossifying fibroma is a reactive gingival growth that may contain mineralised material resembling bone or cementum, visible…