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A Clinical Atlas of 101 Common Skin Diseases

Dermatofibroma

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An inflammatory process that develops secondary to trauma, usually in the form of a penetrating injury or rupture of a follicle, and that proceeds through stages of granulation tissue with numerous extravasated erythrocytes, granulomatous inflammation, and fibrosis.

A Clinical Atlas of 101 Common Skin Diseases

Dermatofibrosarcoma Protuberans

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A malignant nonepithelial neoplasm (a sarcoma) presumably of perineural fibrocytes that presents itself usually on the trunk, but sometimes elsewhere, such as the extremities, face, and scalp.

A Clinical Atlas of 101 Common Skin Diseases

Erythema Annulare Centrifugum

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An inflammatory disease characterized by lesions with arcuate, annular, and serpiginous outlines and by collarettes of scale on the inner margin of lesions that extend outward in centrifugal fashion, disappearing in months as a rule in the absence of treatment.

A Clinical Atlas of 101 Common Skin Diseases

Erythema Multiforme

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An inflammatory process that tends to involve mucous membranes, as well as skin, and of the latter the acra especially.

A Clinical Atlas of 101 Common Skin Diseases

Erythema Nodosum

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An inflammatory process, i.e., a panniculitis, marked by tender erythematous plaques, nodules, or tumors (or combinations thereof) that usually affect the anterior aspect of the legs and, less often, the arms, and induced by processes, in an organ other than the skin, as dissimilar as sarcoidosis, Crohn’s disease, and histoplasmosis.

A Clinical Atlas of 101 Common Skin Diseases

Lupus Erythematosus

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An inflammatory process that expresses itself in the skin in protean ways that are variations on a basic pathologic theme, and includes evanescent patches on the face (“butterfly blush”), scaly papules and plaques that resolve with atrophy and hyperpigmentation (classic discoid lupus erythematosus), arcuate, annular, and serpiginous lesions (subacute cutaneous lupus erythematosus), nonscaling plaques (tumid lupus erythematosus), subcutaneous nodules (lupus profundus), and blisters (bullous lupus erythematosus).

A Clinical Atlas of 101 Common Skin Diseases

Neurofibromatosis

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A constellation of lesions that represent disorders of melanocytes (e.g., axillary "freckles" and café au lait "spots") and of proliferations of Schwann cells (e.g., papules, nodules, and tumors of neurofibroma).

A Clinical Atlas of 101 Common Skin Diseases

Pruritic Urticarial Papules and Plaques of Pregnancy

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An inflammatory process in pregnant women near term that consists of urticarial papules and plaques, especially on the trunk and particularly in association with lesions of striae atrophicantes, the lesions disappearing shortly after parturition.

A Clinical Atlas of 101 Common Skin Diseases

Viral Exanthems

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An inflammatory process manifested by a transient, usually widespread eruption, made up typically of macules and papules, and episodically of vesicles and pustules.

Therapeutic Strategies in Dermatology

Facial Melanosis, Melasma: Key Points

…lanosis (also known as melasma) is a very common condition. In the USA, 5 to 6 million individuals are affected. Melasma usually appears in association with oral contraceptive (OCP) use or pregnancy (“chloasma,” or the “mask of preg…

Therapeutic Strategies in Dermatology

Facial Melanosis, Melasma: Initial Evaluation

Initial Evaluation Clinical images show homogeneously hyperpigmented macules and geographic or irregular patches typically located on forehead, zygomatic cheeks, upper cutaneous lip, and nose. Central facial involvement is most common but mandibular…

Therapeutic Strategies in Dermatology

Scabies: Key Points

Key Points Scabies is a highly contagious infestation due to the skin mite, Sarcoptes scabiei. Typical sites of infestation are: wrists, ankles, interdigital web spaces, umbilicus, intertriginous sites (axilla, inguinal folds), and genitalia. The f…

Therapeutic Strategies in Dermatology

Lichen Sclerosus et Atrophicus: Overview

…4 mg/kg/day can be effective in refractory cases. Photodynamic therapy may be attempted in the most refractory and symptomatic cases. Pitfalls Lichen sclerosus of the genitalia is associated with an increased risk of genital squamous cell carcinoma,…

Therapeutic Strategies in Dermatology

Seborrheic Dermatitis: Key Points

…to result from seborrhea and from an inflammatory response to the commensal skin organism, Malassezia fungi. Thus, the mainstay of treatment includes topical anti-fungal agents alone or in combination with topical steroids. Seborrheic dermatitis can…

Therapeutic Strategies in Dermatology

Drug Eruptions: Initial Evaluation

…tions are common, and cutaneous drug eruptions may occur in 3% of all hospitalized patients who are receiving medications. They can represent 1% of consultations in office-based dermatology practices. Drug eruptions may be divided into simple (withou…

Therapeutic Strategies in Dermatology

Scabies: Initial Evaluation

…d papules, pustules, and vesicles. Linear burrows representing the path of the mite through the skin may also be seen. Wrists, interdigital web spaces, axilla, genitalia are typically affected sites. Infants may present with t…

Therapeutic Strategies in Dermatology

Herpes Simplex: Initial Evaluation

…Aphthous ulcers are typically recurrent ulcers that affect the mouth or genitalia, and may occur sporadically or in the context of a systemic disease (such as inflammatory bowel disease). They are marked by a small, often painful pustule with a b…

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