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Halo Nevus

It is a mole with a white ring or halo around it and is sometimes also called Sutton`s naevus or leukoderma acquisititum centrifugum. It is not uncommon and can be found in children or young adults of either sex. The mole in the centre of the halo is rarely cancerous although all halo moles are required to be examined carefully by an appropriate medical practitioner. The mole is in brown or pink color and is surrounded by an area of white or light skin. The halo gets depigmented and it loses the normal skin pigment or color. It usually affects young people. The mole portion flattens and it may disappear completely. Although the mole may disappear but the white area stays or the normal color may return. Although it is not contagious but it signals that something is wrong with the skin.

 

The halo has sharply demarcated borders. In the halo area there are no melanocytes. An individual can have one halo nevus or several halo nevi. Halo nevi generally develop in adolescence on the trunk and sometimes on the palms and soles.

 

There is no need to remove a halo nevus until and unless it has atypical features. Removal of nevus does not cause the halo portion to get darker and because of this it can result in a noticeable scar in an area of lighter skin color.

 

All the races are equally susceptible to suffer from halo nevus. It mostly occurs in children and the average age of onset is fifteen years.

 

Cause

Halo Nevus occurs when the immune cells attack a mole for unknown reasons. It may also be seen in people with vitiligo or patients suffering from malignant melanoma. A mole may be caused by sunburn which damage the mole and cause it to be recognized by the body as foreign.

 

Symptoms

The symptoms are characterized by the appearance of one or more uniformly colored, evenly shaped, oval or round nevi central with even peripheral margins of hypopigmentation. The mole in the center may be brown, pink or tan. Although the width of the variable is halo but is generally of uniform radial distance from the central nevus.

 

Treatment

Generally no treatment is required. One must get a skin examination conducted in order to rule out any atypical mole or malignant melanoma on the skin. If one is suffering from halo nevus and have another mole that is changing, one should get an evaluation done by the doctor immediately.

 

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