Lentigo, also known as freckles, are small yellow-brown colored spots that appear on the skin. These spots can be caused by a variety of factors, including genetics, age, and exposure to sunlight. Lentigo that results from sunlight exposure is called actinic, or solar, lentigo.
There are two main types of lentigines:
- Solar lentigines: These are the most common type of lentigo and are caused by sun exposure. They are typically small, brown spots that develop on sun-exposed areas of the skin, such as the face, arms, and legs.
- Lentigo maligna: This type of lentigo is a precancerous condition that can develop into melanoma, a type of skin cancer. It is typically larger and more irregular than solar lentigines and is often found on the face or neck.
Actinic lentigo, a type of solar lentigines, typically appears on areas of the skin that are exposed to the sun, such as the face, neck, and hands. These spots may start out small and gradually increase in size over time. They are usually not a cause for concern, but they can be unsightly and may be a sign of sun damage.
Large patches of lentigo, known as macules, can also appear on the skin. These patches can be a sign of a medical condition, such as Peutz-Jeghers syndrome, which is a rare genetic disorder that causes multiple lentigines on the lips, mouth, and other areas of the body.
Lentigines are usually harmless, but it is important to see a doctor if you notice any changes in the size, shape, or color of a lentigo.
There are several treatment options for lentigo, including topical creams, chemical peels, and laser therapy. However, prevention is key when it comes to actinic lentigo. Clients should be advised to wear protective clothing and use a broad-spectrum sunscreen with an SPF of 30 or higher to reduce their risk of developing these spots.
It is also important for clients to be aware of any changes in their skin, including the appearance of new or changing lentigo. If a client notices any unusual spots or patches on their skin, they should be advised to see a dermatologist for evaluation.
Lentigines is the plural form of lentigo. Lentigo refers to a single small, pigmented spot on the skin, while lentigines refers to multiple such spots.