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Dentistry · Oral medicine: aphthous ulceration
Sample itemA patient has recurrent painful shallow oral ulcers with yellow-gray base and erythematous halo on nonkeratinized mucosa. What is most likely?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Recurrent aphthous stomatitis
Recurrent aphthous ulcers are painful noninfectious ulcers on nonkeratinized oral mucosa and typically heal without scarring. Frequent severe disease may prompt evaluation for systemic contributors.
Option by option
A. Leukoplakia
Leukoplakia is a persistent white plaque.
B. Oral melanoma
Melanoma is a pigmented malignant lesion.
C. Recurrent aphthous stomatitis (correct)
Correct. Painful recurrent shallow ulcers on nonkeratinized mucosa are aphthae.
D. Primary syphilis
Primary syphilis classically causes a painless ulcer.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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