## **Core Concept**
Chediak-Higashi syndrome (CHS) is a rare, genetic disorder characterized by **impaired lysosome formation** and **defective phagocytosis**. This condition affects various cellular functions, particularly those of immune cells. The underlying cause is a mutation in the **LYST gene**, which encodes a protein crucial for lysosome and melanosome formation.

## **Why the Correct Answer is Right**
The correct answer involves understanding the key features of Chediak-Higashi syndrome. A hallmark of CHS is the presence of **giant granules** in cells due to the fusion of lysosomes. This leads to **albinism** (oculocutaneous) and **increased susceptibility to infections** because of impaired phagocytic function. The LYST gene mutation disrupts the normal process of vesicle formation and transport, affecting multiple cell types.

## **Why Each Wrong Option is Incorrect**
- **Option A:** [Not provided, assuming incorrect statement about CHS]
- This option is incorrect because [specific reason related to CHS pathophysiology or clinical feature].
- **Option B:** [Not provided, assuming incorrect statement about CHS]
- This option is incorrect because [specific reason related to CHS pathophysiology or clinical feature].
- **Option D:** [Not provided, assuming incorrect statement about CHS]
- This option is incorrect because [specific reason related to CHS pathophysiology or clinical feature].

## **Clinical Pearl / High-Yield Fact**
A crucial point to remember is that patients with Chediak-Higashi syndrome often present with **partial albinism**, **bleeding tendencies** due to platelet dysfunction, and **recurrent infections**. This syndrome is one of the classic causes of **immune deficiency** associated with albinism.

## **Correct Answer:** B.