lentiginous是什么意思，lentiginous翻译

lentiginous是什么意思，lentiginous翻译

Lentiginous: The Science Behind Freckles and Solar Lentigines

* Lentiginous is a term derived from the Latin word "lentigo," which refers to a dark spot or freckle. It is a term used to describe a group of skin conditions characterized by darkened patches on the skin due to an increased production of melanin, the pigment that gives color to the skin, hair, and eyes. One common example of a lentiginous condition is the freckle.

* Freckles are small, flat, brown spots that typically appear on the face, neck, and arms. They are most commonly seen in individuals with fair skin, as the melanin production in these individuals is lower, making the freckles more visible. The primary cause of freckles is exposure to ultraviolet (UV) radiation from the sun, which stimulates the melanocytes, the cells responsible for producing melanin, to produce more melanin in an attempt to protect the skin from further damage.

* Solar lentigines are a group of lentiginous conditions that are characterized by a patch of skin that is darker than the surrounding skin due to an overproduction of melanin. The most common type of solar lentigine is the lentigo simples, which is a single, flat, darkened patch of skin. Other types of solar lentigines include the lentigo lentiginosa, which is a more widespread condition, and the poikiloderma of Civatte, which is a condition characterized by a network of fine, reddish