Which lesion is characterized by erythematous papules and silvery scales?

The lesion characterized by erythematous papules and silvery scales is psoriasis. This chronic inflammatory skin condition often presents with well-defined, red patches covered by thick, silvery scales. These scales result from an increased proliferation of skin cells, leading to an accumulation on the surface.

Psoriasis can occur on various parts of the body but is commonly seen on the elbows, knees, and scalp. The combination of the red, raised lesions and the distinct silvery-white scaling is a hallmark of this condition, making it particularly recognizable in dermatological assessments.

In contrast, other conditions such as impetigo, herpes, and eczema present with different characteristics. Impetigo tends to involve honey-colored crusts around sores, herpes usually presents with grouped vesicles, and eczema is typically characterized by dry, itchy patches without the distinctive scaling seen in psoriasis. Understanding these differences helps in accurately diagnosing and treating skin conditions.