Which condition is described as a chronic skin condition with red lesions covered in silvery scales?

Psoriasis is a chronic skin condition characterized by the presence of red lesions that are often covered by silvery-white scales. This autoimmune disorder leads to an accelerated skin cell turnover, causing the rapid buildup of cells on the skin's surface. The result is the formation of plaques that can be itchy and uncomfortable. Psoriasis can vary in severity and may affect different parts of the body, including the elbows, knees, scalp, and lower back.

Understanding the nature of psoriasis is important not only for recognition but also for treatment purposes, as it often requires specific therapeutic approaches, including topical treatments, phototherapy, and sometimes systemic medications. The other conditions listed differ significantly in their characteristics and implications. For instance, chloasma is more related to pigmentation changes often due to hormonal fluctuations, nevus refers to moles or birthmarks, and dermatitis encompasses various types of inflammation of the skin that present differently than psoriasis.