Table 3.
Summary of the dermoscopic clues of all the dermatological disorders considered, divided according to their clinical pattern (Part III)
Clinical pattern | Acquired keratodermas (I) | Acquired keratodermas (II) | Sclero-atrophic dermatoses | Hypopigmented macular diseases (I) |
---|---|---|---|---|
Dermoscopic clues of each dermatosis |
Palmar psoriasis: • Diffuse white scaling Chronic hand eczema: • Brownish-orange dots/globules • Yellowish scales/crusts Keratoderma due to mycosis fungoides: • Relatively large, amber scales over a white-to-pinkish background Keratoderma due to pityriasis rubra pilaris: • Patchily distributed, homogeneous, structureless, orange areas |
Tinea manuum: • Whitish scales mainly localised in the creases Palmar lichen planus: • Roundish, yellowish areas often having peripheral projections Aquagenic palmar keratoderma: • Yellowish-whitish well-defined globules • Enlargement of the sweat duct pores |
Morphea: • Fibrotic beams Lichen sclerosus: • “Comedo-like openings” • Whitish patches Necrobiosis lipoidica: • Yellowish-orange/whitish-pinkish background • Comma-shaped (incipient lesions), network-shaped/hairpin-like (more developed lesions), or elongated, branching and focussed serpentine (advanced lesions) vessels |
Extragenital guttate lichen sclerosus: • See “Sclero-atrophic dermatoses” Achromic pityriasis versicolor: • Fairly demarcated white area. Fine scales in the skin furrows Guttate vitiligo: • Well-demarcated, dense/glowing, white area • Perifollicular hyperpigmentation |