Nevus comedonicus

Nevus Comedonicus

Nevus comedonicus (/ˈniːvəs kɒmɪˈdɒnɪkəs/), also known as comedo nevus, is a rare type of epidermal nevus that is characterized by closely arranged, dilated follicular openings with dark keratin plugs resembling comedones.

Etymology

The term "nevus comedonicus" is derived from the Latin word "naevus", meaning birthmark, and the Latin word "comedo", meaning glutton. The term "comedo" was used to describe the blackhead-like appearance of the lesions, which resemble the open mouth of a glutton.

Symptoms

Nevus comedonicus typically presents at birth or during early childhood. The most common presentation is a group of closely arranged, dilated follicular openings with dark keratin plugs. These can occur anywhere on the body, but are most commonly found on the face, neck, and upper trunk. The lesions may be asymptomatic, or they may become inflamed and form cysts, abscesses, or fistulae.

Diagnosis

The diagnosis of nevus comedonicus is primarily clinical, based on the characteristic appearance of the lesions. In some cases, a skin biopsy may be performed to confirm the diagnosis.

Treatment

Treatment of nevus comedonicus can be challenging and is often not completely successful. Options include topical treatments, such as retinoids and keratolytics, as well as surgical removal of the lesions.

Related Terms

• Epidermal nevus
• Comedones
• Follicular
• Cyst
• Abscess
• Fistula
• Skin biopsy
• Retinoids
• Keratolytics

External links

• Medical encyclopedia article on Nevus comedonicus
• Wikipedia's article - Nevus comedonicus

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