Nevus spilus

Nevus spilus is a rare type of birthmark that appears as a light brown or tan patch with darker spots within it. It is also known as a speckled lentiginous nevus. This condition is usually present at birth or appears in early childhood.

Causes

The exact cause of nevus spilus is unknown. It is thought to be caused by a mutation in the skin cells that causes them to produce more pigment than normal. This results in the formation of a patch of skin that is darker than the surrounding skin. The darker spots within the patch are caused by clusters of these pigment-producing cells, known as melanocytes.

Symptoms

The main symptom of nevus spilus is the presence of a light brown or tan patch of skin with darker spots within it. The patch can vary in size and shape, and the spots within it can also vary in size and color. The patch and spots are usually flat and do not cause any discomfort or other symptoms.

Diagnosis

Nevus spilus is usually diagnosed by a dermatologist based on its appearance. In some cases, a biopsy may be performed to confirm the diagnosis and rule out other conditions.

Treatment

There is no specific treatment for nevus spilus. If the patch or spots change in size, shape, or color, or if they become painful or itchy, it may be necessary to have them removed. This can be done through surgery, laser treatment, or other methods.

Prognosis

The prognosis for nevus spilus is generally good. It is not a life-threatening condition and does not usually cause any health problems. However, there is a small risk that the spots within the patch could develop into melanoma, a type of skin cancer. Regular check-ups with a dermatologist are recommended to monitor for any changes.

See also

• Birthmark
• Melanoma
• Dermatology

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