Table 5.

Summary of dermoscopy differential diagnoses of genital and extragenital lichen sclerosus (140–145).

Morphea	Presence of white fibrotic beams, structureless or reticular brownish areas. Absence of comedo-like openings, scaling and hemorrhagic areas
Vitiligo	Reduced or absence of pigment network, intralesional spots of residual pigmentation and telangiectasias
Lichen planus	Wickham striae (inconstant and peripheral in vulvar lichen planus), thick linear, irregular, hairpin and spermatozoa-like vessels, dull and intense red background and blue dots or globules
Psoriasis	Light red background, uniform-distributed dotted and tortuous vessels. Diffuse lamellar white scales are typical in extragenital psoriasis.
Lichen simplex chronicus	White-grayish background with diffuse arranged linear, serpentine, and dotted vascularization
Plasma cell mucositis	Serpentine, convoluted, and chalice-shaped vessels over red-yellowish to orange-brownish structureless areas
Granuloma annulare (patch-type)	White and yellowish-orange structureless areas, blurry vessels with variable morphology
Mycosis fungoides	Orange-yellow patches, geometric perifollicular white scales and white patches as well as short, fine and linear vessels
Necrobiosis lipoidica	Comma-shaped (early lesions) or elongated, branching, and focused serpentine (advanced lesions) vessels, yellowish-orange or whitish-pinkish background