Linear and whorled nevoid hypermelanosis
Linear and whorled nevoid hypermelanosis (also known as "Linear nevoid hyperpigmentation," "Progressive cribriform and zosteriform hyperpigmentation," "Reticulate and zosteriform hyperpigmentation," "Reticulate hyperpigmentation of Iijima and Naito and Uyeno," "Zebra-like hyperpigmentation in whorls and streaks," and "Zebra-line hyperpigmentation") is a disorder of pigmentation that develops within a few weeks of birth and progresses for one to two years before stabilizing.:549 There is linear and whorled hyperpigmentation following the lines of Blaschko without preceding bullae or verrucous lesions.:549 It is important to exclude other pigmentary disorders following the Blaschko lines before making a diagnosis of linear and whorled nevoid hypermelanosis.The differential diagnoses include incontinentia pigmenti, linear epidermal nevus, hypomelanosis of Ito and Goltz syndrome. Recently, a case of linear and whorled nevoid hypermelanosis was reported in a Malaysian Chinese girl. Another case has been noted in a female in Ann Arbor, Michigan. The original diagnosis was given in 2008 as well by the University of Michigan Health System.
- Bolognia, Jean L.; et al. (2007). Dermatology. St. Louis: Mosby. ISBN 1-4160-2999-0.
- James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
- Yap FBB. Linear and whorled nevoid hypermelanosis in a Malysian Chinese girl. Egyptian Dermatology Online Journal 2008; 4(2).
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