Warthin-Finkeldey cells are seen in –
**Core Concept**
Warthin-Finkeldey cells are a type of **multinucleated giant cell**. They are characteristic of certain viral infections, particularly **measles**. These cells are significant in the context of **pathological diagnosis**.
**Why the Correct Answer is Right**
Warthin-Finkeldey cells are typically seen in the context of measles infection, especially in lymphoid tissues. The presence of these cells is due to the **cytopathic effect** of the measles virus, leading to the fusion of infected cells and the formation of multinucleated giant cells. This phenomenon is a result of the **viral replication** process.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it does not relate to the specific context of Warthin-Finkeldey cells.
**Option B:** Incorrect as it is not associated with the measles virus or the formation of multinucleated giant cells.
**Option C:** Incorrect because, although it may be related to viral infections, it is not specifically associated with Warthin-Finkeldey cells.
**Clinical Pearl / High-Yield Fact**
Warthin-Finkeldey cells are a key feature in the diagnosis of measles, particularly in lymphoid tissues. Recognizing these cells can be crucial for **differential diagnosis** in patients presenting with symptoms of measles.
**Correct Answer:** D. Measles