An 8-year-old boy presents this white spot on just the left side of the face for 1 month.
SEGMENTAL VITILIGO
Segmental Vitiligo (SV) is the less common variant of vitiligo in which a white depigmented patch occurs in only one segment of the body.
- In one study of 87 patients, the mean age at disease onset was 18.5 years (range: 2 to 63 years). 65.5% had segmental facial involvement. 21% showed extensive involvement of two segments or the trunk.
COMPARISON OF SEGMENTAL WITH CLASSIC VITILIGO
Segmental Vitiligo
- Unilateral
- Non-progressive after one year
- Onset younger age
- No Koebnerization.
- No halo nevi
Classic Vitiligo
- Symmetric
- Progressive over years
- Onset any age
- Koebnerization (lesions triggered by trauma)
- Halo nevi
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