What type of lesions are commonly found in psoriasis?

• A. Flat, discolored patches
• B. Raised, red plaques with silvery scales
• C. Small, fluid-filled blisters
• D. Rough, scaly patches

Answer: (B)

In psoriasis, the skin commonly presents with raised, red plaques that are covered with silvery scales. This is a hallmark characteristic of the condition and reflects the underlying pathophysiology where the skin cells proliferate rapidly, leading to an accumulation of keratin. These plaques can vary in size and can appear anywhere on the body, though they are often found on the elbows, knees, and scalp. The red base of the plaques is due to inflammation and increased blood flow, while the silvery scales are formed from the thickened outer layer of skin due to the rapid turnover of skin cells. Understanding these key features is essential for recognizing psoriasis in clinical practice.