**Core Concept**
Buerger's disease, also known as thromboangiitis obliterans, is a rare, non-atherosclerotic, inflammatory disease of the blood vessels that affects the small and medium-sized arteries, veins, and nerves of the limbs, particularly in young smokers.

**Why the Correct Answer is Right**
The pathophysiology of Buerger's disease involves an abnormal immune response and inflammation of the blood vessel walls, leading to thrombosis and subsequent tissue ischemia. This condition is strongly associated with smoking, and the exact cause is still unknown. However, it is believed that smoking triggers an immune response that causes inflammation and damage to the blood vessels.

**Why Each Wrong Option is Incorrect**
**Option A:** Not specified - cannot evaluate.
**Option B:** Buerger's disease is not associated with atherosclerosis, making this statement incorrect.
**Option C:** Buerger's disease is indeed characterized by inflammation and thrombosis of the small and medium-sized blood vessels, making this statement correct.
**Option D:** Buerger's disease primarily affects the limbs, particularly the hands and feet, making this statement correct.

**Clinical Pearl / High-Yield Fact**
Buerger's disease is a disease of young, smoking men, and prompt cessation of smoking is essential for preventing disease progression.

**Correct Answer:** B.