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Author: Professor Balachandra Ankad, Department of Dermatology, S Nijalingappa Medical College, Bagalkot-587103, Karnataka, India. Copy edited by Gus Mitchell. December 2020.
Lichen sclerosus is a chronic inflammatory skin condition with sclerotic and atrophic lesions of the anogenital area and extragenital skin.
Lichen sclerosus presents as distinctive porcelain white crinkled or thickened patches that tend to scar.
Clinical features of cutaneous lichen sclerosus
Dermoscopy of cutaneous lichen sclerosus varies with the age of the lesion.
Early lesion (less than 2 years):
Late lesion (more than 2 years):
Dermoscopy of cutaneous extragenital lichen sclerosus
Dermoscopy of genital lichen sclerosus shows:
Dermoscopy features of genital lichen sclerosus
Vitiligo dermoscopy: white structureless areas described as having a ‘white glow’ due to the lack of pigment network.
Idiopathic guttate hypomelanosis dermoscopy: white structureless ‘cloudy sky’ areas in various patterns such as amoeboid, petaloid, feathery, and nebuloid.
Morphoea dermoscopy: fibrotic beams (’white clouds’), pigment network, and spreading telangiectasia.
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