A lady came with unilateral white skin lesions with leukotrichia as shown in the picture. What is likely diagnosis?
B. Segmental vitiligo
C. Focal vitiligo
D. Waardenburg syndrome
Ans: B. Segmental vitiligo
(Ref Fitzpatrick 7/e p624-625, Rooks 8/e p58.39-58.51; Harrison 19/e p357-359, 18/e p409¬412).
Most likely diagnosis = Segmental vitiligo.
- Occurs along a nerve segment
- Common on face along branches of trigeminal nerve.
- i.e., lesions increase initially (6-12 months) à then remain static.
- Leukotrichia on depigmented areas & away from vitiliginous areas.
- Feathery margins.