What term is used to describe multiple light brown discolorations resulting from sun exposure?

The term "lentigines" refers to multiple light brown discolorations on the skin that primarily develop as a result of sun exposure. These lesions are often referred to as sun spots or age spots and are a common sign of skin aging caused by cumulative UV exposure. Lentigines are usually flat, typically round or oval in shape, and they can vary in size. They occur when melanocytes (the pigment-producing cells in the skin) become overactive due to the effects of ultraviolet radiation.

Understanding this term is crucial in the context of skin care and dermatology because it highlights the relationship between environmental factors, such as sun exposure, and skin changes. The other options pertain to different skin conditions and are not characterized specifically by the multiple light brown discolorations caused by sun exposure. Milia are small, white cysts typically found around the eyes, lesions refer to any abnormal tissue growth or damage, and dermatitis is a general term for inflammation of the skin, which is unrelated to the pigmentation changes caused by sun exposure.