Halo nevi association in nonsegmental vitiligo affects age at onset and depigmentation pattern.

Objective: To compare factors associated with halo nevi with nonsegmental vitiligo (NSV) vs NSV alone.

Design: Prospective observational study in 553 patients with a confirmed diagnosis of NSV attending a vitiligo clinic between January 1, 2006, and July 1, 2010.

Setting: Vitiligo Clinic at the Department of Dermatology, University Hospital Center of Bordeaux, Bordeaux, France.

Segmental vitiligo associated with generalized vitiligo (mixed vitiligo): a retrospective case series of 19 patients.

Background: Mixed vitiligo (MV), the association of segmental vitiligo (SV) and nonsegmental vitiligo, has been rarely reported.

Objective: The aim of this study was to delineate the clinical spectrum of MV through a case series of patients with typical SV associated with patchy bilateral vitiligo.

Methods: This was a cross-sectional evaluation in the setting of a prospective observational study conducted in the vitiligo clinic of the department of dermatology in Bordeaux, France.

Multivariate analysis of factors associated with early-onset segmental and nonsegmental vitiligo: a prospective observational study of 213 patients.

Background: Although mixed forms have been described recently, segmental (SV) and nonsegmental vitiligo (NSV) are considered as clinically distinct. However, limited epidemiological data are available to help distinguish associated factors, and recent genome-wide association studies have been restricted to NSV. The higher prevalence of SV in children is helpful when comparing the two major presentations of the disease.