Most individuals with either segmental or nonsegmental XXXX display evidence of bilateral @entity18129 .

@entity1 @entity75 @entity1694 @entity854 @entity18129
BACKGROUND: Vitiligo has been classified clinically into segmental @entity1694 (SV) and nonsegmental @entity1694 (NSV) and may also be associated with @entity854 . OBJECTIVES: We examined cochlear function in ears of individuals with SV and NSV, including subjects with facial and @entity75 , and in @entity1 who have SV with unilateral facial involvement. METHODS: This study included 25 @entity1 with SV and 28 @entity1 with NSV. Fifteen age- and sex-matched healthy individuals served as controls. Cochlear function was studied using the distortion product otoacoustic emissions (DPOAEs). Data were analysed using SPSS. RESULTS: Sixty-four ears (60%) of @entity1 with @entity1694 had @entity18129 while the control group exhibited no abnormalities. On comparing the @entity18129 of @entity1 with SV with @entity1 with NSV, no statistically significant difference was found. The ears on both sides, affected and unaffected by @entity1694 , in @entity1 with SV showed @entity18129 with no statistically significant difference in DPOAE. To determine the effect of the lesion side on cochlear function, we compared DPOAE amplitude using Student's t-test. The comparisons included NSV of the face vs. NSV on other areas, NSV of the face vs. SV of the face and SV of the face vs. SV of other areas. No statistically significant difference was found in these comparisons. CONCLUSIONS: @entity18129 is common in both NSV and SV and does not reflect the appearance of @entity1694 in the skin. Our results underscore the important role of melanocytes and melanin in cochlear function, and suggest that the @entity18129 in SV point to the presence of additional nonsegmental pathophysiological events underlying all forms of @entity1694 .
