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A Clinical Atlas of 101 Common Skin Diseases

Keratosis Pilaris/Lichen Spinulosus

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Keratotic spikes that emerge from dilated ostia of infundibula and are equidistant from one another.

A Clinical Atlas of 101 Common Skin Diseases

Porokeratosis

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A constellation of conditions that assumes various forms clinically but whose most dependable denominator in common (the exception being the punctate manifestation) is a keratotic ring around a central zone of atrophy, e.g., in a congenital expression that takes the form of a plaque (Mibelli), in a congenital manifestation in which lesions are in linear array (segmental), in an acquired type induced by ultraviolet light (disseminated superficial actinic), and in an acquired form in which lesions are not in photodistribution (disseminated superficial).

A Clinical Atlas of 101 Common Skin Diseases

Seborrheic Keratosis, Including Solar Lentigo

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A benign neoplasm of keratinocytes that consists of pigmented macules, papules, and plaques distributed on sun-exposed sites for a solar lentigo and the reticulated type of seborrheic keratosis, which represents a later stage of solar lentigo, and on the trunk mostly for other types of seborrheic keratosis unrelated to solar lentigo.

A Clinical Atlas of 101 Common Skin Diseases

Seborrheic Keratosis, Including Solar Lentigo

A benign neoplasm of keratinocytes that consists of pigmented macules, papules, and plaques distributed on sun-exposed sites for a solar lentigo and the reticulated type of seborrheic keratosis, which represents a later stage of solar lentigo, and o…

A Clinical Atlas of 101 Common Skin Diseases

Keratosis Pilaris/Lichen Spinulosus

Keratotic spikes that emerge from dilated ostia of infundibula and are equidistant from one another. The term keratosis pilaris refers to the phenomenon when it presents itself without any distinct arrangement of individual lesions, whereas the desi…

Therapeutic Strategies in Dermatology

Keratosis Pilaris

Keratotic spikes that emerge from dilated ostia of infundibula and are equidistant from one another. The term keratosis pilaris refers to the phenomenon when it presents itself without any distinct arrangement of individual lesions, whereas the desi…

Therapeutic Strategies in Dermatology

Mucha-Habermann Disease: Overview

Pityriasis Lichenoides et Variolaformis Acuta / Pityriasis Lichenoides Chronica This condition is a benign and often self-limited lymphocytic vasculitis. Pityriasis lichenoides chronica (PLC) is treated like pityriasis lichenoides et varioliformis a…

A Clinical Atlas of 101 Common Skin Diseases

Squamous Cell Carcinoma

…pule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen&#…

A Clinical Atlas of 101 Common Skin Diseases

Mucha-Habermann Disease

…Alternatively, the macules may evolve more slowly (pityriasis lichenoides chronica) to become scaly papules. In some patients, rapidly developing and slowly evolving lesions may be present concurrently, e.g., purpuric papules and scaly papules may c…

Therapeutic Strategies in Dermatology

Keratosis Pilaris: Key Points

…al treatments reduce inflammation of KP lesions. Introduction Keratosis pilaris (KP) is an extremely common, often autosomal dominantly inherited disorder that usually does not require treatment. Keratosis pilaris is most frequently seen in associat…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Keratosis Lichenoides Chronica?

…in 1886 and 1895, and the one described by Margolis in 1972 as keratosis lichenoides chronica. 2. The relationship between the condition Margolis called keratosis lichenoides chronica and the diseases diagnosed as that after 1972. Although at first g…

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