Lichen planus (classic type): itchy, polygonal, partially confluent, brownish-reddish papules on the right hand and right wrist of a 40-year-old man, existing for 8 weeks; independent of LP, strong, palmar hyperkeratoses exist, the development of which can be ascribed to the professional activity as floor layer.
Keratosis palmoplantaris diffusa circumscripta. 2-year-old boy has a chronic, congenital, smooth, evenly distributed, waxy thickened and yellowish discolored plaque formation of both palms. No symptoms. It is an autosomal dominant inherited palmoplantar cornification disorder.
Pustulosis palmaris et plantaris: acutely occurring, disseminated, 0.2-0.4 cm large, smooth yellowish pustules next to older, dried brown spots; neither history nor clinical evidence of psoriasis.
Psoriasis palmaris: chronic inpatient plaque psoriasis of the hands with localized, in places striped, keratotic plaques that have been present for years.
Contact dermatitis toxic: General view: Hyperkeratotic-rhagadiform contact dermatitis with extensive hyperkeratotic plaques and single rhagades on the right palm of a 63-year-old metal worker.
Pustulosis palmaris et plantaris: massive (sterile), painful pustulosis of the soles of the feet after a febrile (streptococcal) infection. solitary, also grouped pustules, in places conflated to form larger "pus lakes". associated, pressure-painful arthritis (swelling) of the sternoclavicular joints.
Keratosis palmoplantaris diffusa circumscripta: Thick, waxy, yellowish, plate-like corneal layer, which is sharply separated from the field skin by a red stripe; in the lower right part of the picture the waxy corneal plate had detached a few days ago.
Hand eczema atopic: previously known atopic eczema with variable course; the skin lesions on both palms have existed with varying intensity for several years.
Psoriasis palmaris et plantaris (plaque type): red and scaly, markedly indurated plaques on the palm of the hand. Sharp border to the flexor side of the forearm. This sharp transition to the unaffected skin differentiates palmar psoriasis from "hand eczema".
psoriasis palmaris et plantaris (plaquet type): palmo-plantar psoriasis known for years. no pre-treatment. extensive, sharply limited erythema. circumscribed partly stripy hyperkeratotic plaques. single deep rhagades.
eczema atopic (overview): extensive reddening of the palm. hyperlinearity. disseminated erosions. lichenified eczema foci in the area of the wrist (DD psoriasis palmoplantaris). for further explanations see next figure.
Psoriasis palmaris et plantaris. dry keratotic plaque type. non pretreated psoriasis palmaris. in a 42-year-old man, these sharply defined, rough, hyperkeratotic plaques, which have existed permanently for months, appear in the area of the right palm.
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