Pathology · single question
A 50-year-old female has white striae (lacy lines) on the buccal mucosa. What is the diagnosis?
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Correct answer: B. Lichen planus
- A. ❌ Leukoplakia is a homogeneous white patch without the striated pattern.
- B. ✅ Correct. White striae (Wickham's striae) on the buccal mucosa are pathognomonic for oral lichen planus. The reticular lacy white pattern is classic.
- C. ❌ Leukoedema is a filmy opalescence that disappears when stretched.
- D. ❌ Candidiasis appears as wipeable white coating or red atrophic mucosa.
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