Pathology · single question
A patient has a white patch lesion that wipes off. Which of the following is NOT included in the differential diagnosis for a wipeable white lesion?
Show answer and explanation
Correct answer: B. Actinic keratosis
- A. ❌ Uremic stomatitis can present as wipeable white lesions in patients with renal failure — it IS in the differential.
- B. ✅ Correct (exception). Actinic keratosis (solar keratosis) is caused by UV exposure, occurs on sun-exposed skin or the vermilion border, and does NOT wipe off. It is NOT in the differential for intraoral wipeable white lesions.
- C. ❌ Candidiasis (pseudomembranous type) IS the textbook wipeable white lesion.
- D. ❌ Pseudomembranous candidiasis DOES wipe off, leaving a red bleeding base — it IS the classic wipeable lesion.