Supplementary material for JAAD Research Letter: 'Utility of dermoscopy in distinguishing vitiligo from other hypopigmenting disorders: a cross-sectional analysis'

Published: 15 September 2023| Version 1 | DOI: 10.17632/h5ftk2zgh7.1
Ananya Sharma


Supplementary Figure 1. A. Dermoscopy of a vitiligo lesion showing depigmented background, completely absent pigment network, perifollicular retention of pigment, leucotrichia, vascular structures as red dots; and lack of discernibility of eccrine openings, discernible in other areas (black circle) B. Dermoscopic features of nevus depigmentosus showing intermediate margin with background hypopigmentation and faint pigment network present throughout the lesion, with lack of surface, vascular or other changes C. Dermoscopy of ash-leaf macule showing characteristic patchy pigment network (‘ALM-like’) with sharply demarcated islands of normal pigment network (blue arrow) within a depigmented lesion D. Dermoscopy of pityriasis alba showing ill-defined hypopigmented lesion with faint pigment network present throughout the lesion and subtle erythema E. Dermoscopy of pityriasis versicolor showing hypopigmented background with presence of faint network, perifollicular hypopigmentation and fine grey-white scaling F. Dermoscopy of idiopathic guttate hypomelanosis showing well-defined lesion with depigmented background, complete absence of pigment network and brown outlined discernible eccrine openings (black arrows) (DL3 10x, polarized). Supplementary table 1. Dermoscopic findings of vitiligo and comparison by activity of disease Supplementary table 2. Dermoscopic features of non-vitiligo lesions (nevus depigmentosus, ash-leaf macules, pityriasis alba, idiopathic guttate hypomelanoses, pityriasis versicolor)



All India Institute of Medical Sciences


Dermatology, Tuberous Sclerosis, Pigmentary Disorder, Vitiligo, Dermoscopy, Depigmentation, Pityriasis