Wickham’s striae is a feature of: September 2009, 2010, September 2012
**Core Concept**
Wickham's striae are a characteristic feature of certain dermatological conditions, specifically those involving the mucous membranes and skin. The presence of Wickham's striae is a diagnostic clue for **lichen planus**, a chronic inflammatory condition.
**Why the Correct Answer is Right**
Wickham's striae are fine, white, or gray lines that can be found on the surface of lesions in lichen planus. They are a result of the **basal cell degeneration** and the **inflammatory response** in the dermis, leading to the formation of these characteristic lines.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect as it is not the primary condition associated with Wickham's striae.
**Option B:** Incorrect as it does not typically present with Wickham's striae.
**Option C:** Incorrect, although it is close, it is not the most accurate answer choice given.
**Why Each Wrong Option is Incorrect (Continued)**
**Option D:** Not the correct answer here as we are looking for the condition that is most closely associated with Wickham's striae.
**Clinical Pearl / High-Yield Fact**
Wickham's striae are a key diagnostic feature that can help differentiate **lichen planus** from other dermatological conditions.
**Correct Answer:** D. Lichen planus.