Abstract
Dermatoscopy is a useful, non-invasive method in the diagnosis of various dermatological diseases. Dermatoscopy of non-pigmented skin lesions shows additional morphologic features, such as cutaneous vascular pattern, scale color and scale distribution pattern, and background color. Dermatoscopy can be useful tool in differential diagnosis in palmoplantar dermatoses. The most specific dermatoscopic features of hand eczema include yellowish-orange globules, yellowish scales and yellowish crusts. Light red background color, regular vascular distribution pattern, dotted vessels and white scale color have been reported in previous studies as dermatoscopic features of palmoplantar psoriasis. Dotted vessels can be seen in various dermatoses, such as psoriasis, eczema, lichen planus, porokeratosis and keratodermas. The distribution pattern and color of the scales are also important in the differential diagnosis of palmoplantar dermatoses. Previous studies have shown that scales are mainly localized in skin furrows in patients with tinea manum. Patchy distributed, homogeneous, structureless, orange areas were reported in palmar keratoderma due to pityriasis rubra pilaris. Amber scales, white-to-pinkish background; sparse whitish scales were reported in palmar keratoderma due to mycosis fungoides. Dermatoscopical findings of palmoplantar area can help in the differential diagnosis of various dermatoses.
Highlights
Dermatoscopy is a useful, non-invasive and cost-effective diagnostic tool for benign and malignant skin tumors; it is important in the clinical diagnosis of pigmentary disorders, hair-nail disorders, inflammatory and infectious diseases [1].Palmoplantar dermatoses include a wide range of skin conditions
Differential diagnosis of inflammatory dermatoses such as eczema, psoriasis, pityriasis rubra pilaris (PRP), lichen planus may be more difficult in patients with isolated involvement of the palmoplantar region
We showed red globular ring vessels in psoriasis in palmoplantar lesions
Summary
Dermatoscopy is a useful, non-invasive and cost-effective diagnostic tool for benign and malignant skin tumors; it is important in the clinical diagnosis of pigmentary disorders, hair-nail disorders, inflammatory and infectious diseases [1]. Palmoplantar dermatoses include a wide range of skin conditions. Dermatological diseases involving palmoplantar region are a common question when consulted in dermatological practice. The correct diagnosis is often easy on the basis of typical clinical characteristics, but could be difficult when several entities occur at the same time or overlap. Many dermatological diseases can involve palmoplantar region; such as inflammatory dermatoses, infections and palmoplantar keratodermas (PPKs). Differential diagnosis of inflammatory dermatoses such as eczema, psoriasis, pityriasis rubra pilaris (PRP), lichen planus may be more difficult in patients with isolated involvement of the palmoplantar region
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