Oral Diagnosis and Pathology Flashcards
7 cards from real AGD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Oral Diagnosis and Pathology flashcards as text
Which salivary gland tumor most commonly undergoes perineural invasion and has a pattern of skip lesions?
Answer: Adenoid cystic carcinoma
Adenoid cystic carcinoma is notorious for perineural invasion and skip lesions along nerve sheaths, contributing to its high recurrence rate.
Toothpaste-fluoride interaction causing a white, chalky, demarcated enamel lesion is best classified as:
Answer: Dental fluorosis
Dental fluorosis results from excess fluoride during enamel formation, producing white opaque to brown-stained, pitted enamel defects.
A pigmented lesion on the palate of a patient taking antimalarial medication most likely represents:
Answer: Drug-induced melanosis
Antimalarials (e.g., hydroxychloroquine) can cause diffuse drug-induced melanosis of the oral mucosa, especially on the hard palate.
The histologic hallmark of pemphigus vulgaris that distinguishes it from mucous membrane pemphigoid is:
Answer: Suprabasilar acantholysis with tombstone cells
Pemphigus vulgaris shows suprabasilar acantholysis with a row of remaining basal cells giving the 'tombstone' appearance, unlike the subepithelial split in pemphigoid.
A patient presents with trismus, fever, and swelling in the submandibular and sublingual spaces bilaterally. This life-threatening condition is called:
Answer: Ludwig angina
Ludwig angina is a rapidly spreading bilateral cellulitis of the submandibular and sublingual spaces that can cause fatal airway obstruction.
Which finding on a panoramic radiograph is most suspicious for an odontogenic keratocyst rather than a simple dentigerous cyst?
Answer: Scalloping along root surfaces with corticated borders
OKC tends to grow anteroposteriorly along the medullary cavity with scalloped corticated borders, unlike the simple dome shape of a dentigerous cyst.
Geographic tongue (benign migratory glossitis) is associated with which systemic condition in some patients?
Answer: Psoriasis
Geographic tongue shares histologic features with psoriasis and is found at higher prevalence in psoriasis patients, suggesting a common pathogenesis.