**Core Concept**
Pautrier's microabscess is a characteristic histopathological feature of mycosis fungoides, a type of cutaneous T-cell lymphoma. It represents a collection of malignant T-cells that have infiltrated the epidermis, leading to the disruption of normal skin architecture.

**Why the Correct Answer is Right**
Pautrier's microabscess is formed by the aggregation of atypical lymphocytes, specifically CD4+ T-cells, within the epidermis. This process involves the invasion of these malignant cells into the epidermal layer, causing destruction of the normal skin structure and leading to the formation of characteristic microabscesses. The presence of Pautrier's microabscess is a key diagnostic feature of mycosis fungoides.

**Why Each Wrong Option is Incorrect**
* **Option A:** Not a correct association with Pautrier's microabscess.
* **Option B:** Not a correct association with Pautrier's microabscess.
* **Option C:** Not a correct association with Pautrier's microabscess.

**Clinical Pearl / High-Yield Fact**
Mycosis fungoides is the most common form of cutaneous T-cell lymphoma, and Pautrier's microabscess is a distinctive histopathological feature that aids in its diagnosis. A high index of suspicion is required for early detection and management of this condition.

**Correct Answer:** C. Sézary syndrome