In wardernburg syndrome, following are seen except
**Core Concept**
Wardernburg syndrome is a rare genetic disorder characterized by **congenital deafness**, **pigmentation anomalies**, and **craniofacial abnormalities**. It is associated with mutations in genes involved in the development of the **melanocyte** and **enteric nervous system**. The syndrome affects the production of **melanin**, leading to **heterochromia iridum** and **white forelock**.
**Why the Correct Answer is Right**
Since the correct answer is not provided, let's discuss the common features of Wardernburg syndrome, which include **deafness**, **heterochromia iridum**, **white forelock**, and **craniofacial abnormalities**. These features are due to the impaired development of **melanocytes** and the **enteric nervous system**.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option, it's challenging to provide a detailed explanation. However, common features of Wardernburg syndrome are typically seen, and any option that does not align with these characteristics would be incorrect.
**Option B:** Similarly, without the specific option, it's difficult to provide a detailed explanation. Any option that does not match the known characteristics of Wardernburg syndrome would be incorrect.
**Option C:** Again, without the specific option, it's challenging to provide a detailed explanation. However, any option that is not a recognized feature of Wardernburg syndrome would be incorrect.
**Option D:** This option would be incorrect if it does not align with the known features of Wardernburg syndrome.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that Wardernburg syndrome is often associated with **congenital deafness** and **pigmentation anomalies**, such as **heterochromia iridum**. Recognizing these features is crucial for diagnosis.
**Correct Answer:** Correct Answer: D. Neurofibromatosis