Halo nevus explained

Synonyms:Leukoderma acquisitum centrifugum of sutton
Halo nevus

Halo nevus (also known as "Leukoderma acquisitum centrifugum," "Perinevoid vitiligo," and "Sutton nevus"[1]) is a mole that is surrounded by a depigmented ring or 'halo'.

Presentation

Halo nevi are also known as Sutton's nevi, or leukoderma acquisitum centrifugum. Halo nevi are named such because they are a mole (nevus) that is surrounded by an area of depigmentation that resembles a halo.

Halo nevi are associated with vitiligo. Sometimes the pale (hypopigmented) areas will spontaneously regress, and pigment returns.

Causes

The formation of a halo surrounding a nevi is believed to occur when certain white blood cells called CD8+ T lymphocytes destroy the pigment-producing cells of the skin (melanocytes).[2] The cause for the attack is unknown.[3]

Treatment

As halo nevi are only of cosmetic significance, no treatment is required,[4] and patients will be asymptomatic. Although halo nevi are harmless, it is important to monitor the lesion on regular basis.[5] Watch out for any changes in appearance of existing or new halo nevi. If there is any change in appearance or is associated with pain, itch, and infection, a doctor should be consulted immediately to exclude the possibility of melanoma.

Epidemiology

Halo nevi are estimated to be present in approximately 1% of the general population, and are found to be more prevalent in people with vitiligo, malignant melanoma,[3] or Turner syndrome. All races and sexes are equally susceptible to this disease, although a familial tendency has been reported. The average age of onset is in a person's teenage years.

See also

Notes and References

  1. Book: James, William D. . Berger, Timothy G. . Andrews' Diseases of the Skin: clinical Dermatology . Saunders Elsevier . 2006 . 0-7216-2921-0 . etal.
  2. Mundinger. Gerhard S.. Halo Phenomenon. New England Journal of Medicine. January 16, 2014. 370. 3. 262. 10.1056/NEJMicm1306230. 24428471.
  3. Web site: Halo Nevus - skinsite.com. August 4, 2008.
  4. Web site: CareFair.com - Halo Nevis. August 4, 2008.
  5. Web site: DermaTalk - Halo Nevus.