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Dermoscopy in General Dermatology: A Practical Overview

View Article: PubMed Central - PubMed

ABSTRACT

Over the last few years, dermoscopy has been shown to be a useful tool in assisting the noninvasive diagnosis of various general dermatological disorders. In this article, we sought to provide an up-to-date practical overview on the use of dermoscopy in general dermatology by analysing the dermoscopic differential diagnosis of relatively common dermatological disorders grouped according to their clinical presentation, i.e. dermatoses presenting with erythematous-desquamative patches/plaques (plaque psoriasis, eczematous dermatitis, pityriasis rosea, mycosis fungoides and subacute cutaneous lupus erythematosus), papulosquamous/papulokeratotic dermatoses (lichen planus, pityriasis rosea, papulosquamous sarcoidosis, guttate psoriasis, pityriasis lichenoides chronica, classical pityriasis rubra pilaris, porokeratosis, lymphomatoid papulosis, papulosquamous chronic GVHD, parakeratosis variegata, Grover disease, Darier disease and BRAF-inhibitor-induced acantholytic dyskeratosis), facial inflammatory skin diseases (rosacea, seborrheic dermatitis, discoid lupus erythematosus, sarcoidosis, cutaneous leishmaniasis, lupus vulgaris, granuloma faciale and demodicidosis), acquired keratodermas (chronic hand eczema, palmar psoriasis, keratoderma due to mycosis fungoides, keratoderma resulting from pityriasis rubra pilaris, tinea manuum, palmar lichen planus and aquagenic palmar keratoderma), sclero-atrophic dermatoses (necrobiosis lipoidica, morphea and cutaneous lichen sclerosus), hypopigmented macular diseases (extragenital guttate lichen sclerosus, achromic pityriasis versicolor, guttate vitiligo, idiopathic guttate hypomelanosis, progressive macular hypomelanosis and postinflammatory hypopigmentations), hyperpigmented maculopapular diseases (pityriasis versicolor, lichen planus pigmentosus, Gougerot-Carteaud syndrome, Dowling-Degos disease, erythema ab igne, macular amyloidosis, lichen amyloidosus, friction melanosis, terra firma-forme dermatosis, urticaria pigmentosa and telangiectasia macularis eruptiva perstans), itchy papulonodular dermatoses (hypertrophic lichen planus, prurigo nodularis, nodular scabies and acquired perforating dermatosis), erythrodermas (due to psoriasis, atopic dermatitis, mycosis fungoides, pityriasis rubra pilaris and scabies), noninfectious balanitis (Zoon’s plasma cell balanitis, psoriatic balanitis, seborrheic dermatitis and non-specific balanitis) and erythroplasia of Queyrat, inflammatory cicatricial alopecias (scalp discoid lupus erythematosus, lichen planopilaris, frontal fibrosing alopecia and folliculitis decalvans), nonscarring alopecias (alopecia areata, trichotillomania, androgenetic alopecia and telogen effluvium) and scaling disorders of the scalp (tinea capitis, scalp psoriasis, seborrheic dermatitis and pityriasis amiantacea).

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Dermoscopy of plaque psoriasis typically shows white scales and symmetrically and regularly distributed dotted vessels on a red background (a). The main dermoscopic criteria in eczematous dermatitis are dotted vessels (black circle) in a patchy distribution and yellow serocrusts (black arrowhead) (b). Both the herald patch and the secondary lesions of pityriasis rosea are dermoscopically characterised by peculiar peripheral whitish scales (“collarette” sign) as well as irregular or patchy dotted vessels (black circle); structureless orangish areas are also visible (black arrow) (c). Dermoscopic examination of mycosis fungoides reveals a combination of fine short, linear vessels with orange-yellowish patchy areas (d)
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Fig1: Dermoscopy of plaque psoriasis typically shows white scales and symmetrically and regularly distributed dotted vessels on a red background (a). The main dermoscopic criteria in eczematous dermatitis are dotted vessels (black circle) in a patchy distribution and yellow serocrusts (black arrowhead) (b). Both the herald patch and the secondary lesions of pityriasis rosea are dermoscopically characterised by peculiar peripheral whitish scales (“collarette” sign) as well as irregular or patchy dotted vessels (black circle); structureless orangish areas are also visible (black arrow) (c). Dermoscopic examination of mycosis fungoides reveals a combination of fine short, linear vessels with orange-yellowish patchy areas (d)

Mentions: Dermoscopy of plaque psoriasis typically shows a characteristic pattern consisting of diffuse white scales and symmetrically and regularly distributed dotted vessels on a light or dull red background (Fig. 1a) [13–24]. When the presence of marked hyperkeratosis impedes the view of underlying features, scale removal may be useful to display the above-mentioned vascular pattern as well as possible tiny red blood drops (dermoscopic “Auspitz sign”) [21]. The “red globular ring” pattern is another less common (but specific) vascular pattern visible in plaque psoriasis lesions, while other patterns of vessel distribution are extremely rare [25].Fig. 1


Dermoscopy in General Dermatology: A Practical Overview
Dermoscopy of plaque psoriasis typically shows white scales and symmetrically and regularly distributed dotted vessels on a red background (a). The main dermoscopic criteria in eczematous dermatitis are dotted vessels (black circle) in a patchy distribution and yellow serocrusts (black arrowhead) (b). Both the herald patch and the secondary lesions of pityriasis rosea are dermoscopically characterised by peculiar peripheral whitish scales (“collarette” sign) as well as irregular or patchy dotted vessels (black circle); structureless orangish areas are also visible (black arrow) (c). Dermoscopic examination of mycosis fungoides reveals a combination of fine short, linear vessels with orange-yellowish patchy areas (d)
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Related In: Results  -  Collection

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getmorefigures.php?uid=PMC5120630&req=5

Fig1: Dermoscopy of plaque psoriasis typically shows white scales and symmetrically and regularly distributed dotted vessels on a red background (a). The main dermoscopic criteria in eczematous dermatitis are dotted vessels (black circle) in a patchy distribution and yellow serocrusts (black arrowhead) (b). Both the herald patch and the secondary lesions of pityriasis rosea are dermoscopically characterised by peculiar peripheral whitish scales (“collarette” sign) as well as irregular or patchy dotted vessels (black circle); structureless orangish areas are also visible (black arrow) (c). Dermoscopic examination of mycosis fungoides reveals a combination of fine short, linear vessels with orange-yellowish patchy areas (d)
Mentions: Dermoscopy of plaque psoriasis typically shows a characteristic pattern consisting of diffuse white scales and symmetrically and regularly distributed dotted vessels on a light or dull red background (Fig. 1a) [13–24]. When the presence of marked hyperkeratosis impedes the view of underlying features, scale removal may be useful to display the above-mentioned vascular pattern as well as possible tiny red blood drops (dermoscopic “Auspitz sign”) [21]. The “red globular ring” pattern is another less common (but specific) vascular pattern visible in plaque psoriasis lesions, while other patterns of vessel distribution are extremely rare [25].Fig. 1

View Article: PubMed Central - PubMed

ABSTRACT

Over the last few years, dermoscopy has been shown to be a useful tool in assisting the noninvasive diagnosis of various general dermatological disorders. In this article, we sought to provide an up-to-date practical overview on the use of dermoscopy in general dermatology by analysing the dermoscopic differential diagnosis of relatively common dermatological disorders grouped according to their clinical presentation, i.e. dermatoses presenting with erythematous-desquamative patches/plaques (plaque psoriasis, eczematous dermatitis, pityriasis rosea, mycosis fungoides and subacute cutaneous lupus erythematosus), papulosquamous/papulokeratotic dermatoses (lichen planus, pityriasis rosea, papulosquamous sarcoidosis, guttate psoriasis, pityriasis lichenoides chronica, classical pityriasis rubra pilaris, porokeratosis, lymphomatoid papulosis, papulosquamous chronic GVHD, parakeratosis variegata, Grover disease, Darier disease and BRAF-inhibitor-induced acantholytic dyskeratosis), facial inflammatory skin diseases (rosacea, seborrheic dermatitis, discoid lupus erythematosus, sarcoidosis, cutaneous leishmaniasis, lupus vulgaris, granuloma faciale and demodicidosis), acquired keratodermas (chronic hand eczema, palmar psoriasis, keratoderma due to mycosis fungoides, keratoderma resulting from pityriasis rubra pilaris, tinea manuum, palmar lichen planus and aquagenic palmar keratoderma), sclero-atrophic dermatoses (necrobiosis lipoidica, morphea and cutaneous lichen sclerosus), hypopigmented macular diseases (extragenital guttate lichen sclerosus, achromic pityriasis versicolor, guttate vitiligo, idiopathic guttate hypomelanosis, progressive macular hypomelanosis and postinflammatory hypopigmentations), hyperpigmented maculopapular diseases (pityriasis versicolor, lichen planus pigmentosus, Gougerot-Carteaud syndrome, Dowling-Degos disease, erythema ab igne, macular amyloidosis, lichen amyloidosus, friction melanosis, terra firma-forme dermatosis, urticaria pigmentosa and telangiectasia macularis eruptiva perstans), itchy papulonodular dermatoses (hypertrophic lichen planus, prurigo nodularis, nodular scabies and acquired perforating dermatosis), erythrodermas (due to psoriasis, atopic dermatitis, mycosis fungoides, pityriasis rubra pilaris and scabies), noninfectious balanitis (Zoon’s plasma cell balanitis, psoriatic balanitis, seborrheic dermatitis and non-specific balanitis) and erythroplasia of Queyrat, inflammatory cicatricial alopecias (scalp discoid lupus erythematosus, lichen planopilaris, frontal fibrosing alopecia and folliculitis decalvans), nonscarring alopecias (alopecia areata, trichotillomania, androgenetic alopecia and telogen effluvium) and scaling disorders of the scalp (tinea capitis, scalp psoriasis, seborrheic dermatitis and pityriasis amiantacea).

No MeSH data available.


Related in: MedlinePlus