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A Clinical Atlas of 101 Common Skin Diseases


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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


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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

Acanthosis Nigricans

Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds. This disease has a predilection for intertriginous regions. The condition may develop consequent to…

A Clinical Atlas of 101 Common Skin Diseases

Persistent Pigmented Purpuric Dermatitis

An inflammatory process, but not a vasculitis, that involves the legs especially with purpuric macules and subtle papules (Schamberg’s disease), lichenoid papules (lichenoid purpura of Gougerot-Blum), and scaly papules (eczematid-like purpura…

Therapeutic Strategies in Dermatology

Persistent Pigmented Purpuric Dermatitis: Overview

Overview This group of diseases includes Schamberg’s disease, purpura annularis telangiectodes (of Majocchi), lichenoid pigmented purpura (of Gougerot and Blum), eczematoid purpura of Doucas and Kapetanakis (disseminated pruriginous angioderma…

Therapeutic Strategies in Dermatology

Oral Hairy Leukoplakia: Key Points

…virus (EBV), and usually presents as corrugated white plaques of the lateral tongue. OHL is a clinical manifestation of immunosuppression and classically presents in the setting of HIV infection. OHL is a chronic condition that is managed over time…

A Clinical Atlas of 101 Common Skin Diseases

Squamous Cell Carcinoma

…osis and radiation keratosis, are euphemisms for various types of superficial squamous cell carcinoma. Very episodically, neoplastic cells of those types of squamous cell carcinoma proliferate wildly, and the primary neoplasm then consists of aggrega…

Histologic Diagnosis of Inflammatory Skin Diseases

Persistent pigmented purpuric dermatitis

…s petechiae that sometimes become confluent to assume the form of poorly circumscribed red-brown patches; subtle purpuric papules may be detectable. Gougerot-Blum’s lichenoid purpura (lichenoid papular variant) consists of minute discrete rust-…

Histologic Diagnosis of Inflammatory Skin Diseases


…us extravasated erythrocytes in combination with an infiltrate of lymphocytes in the upper part of the dermis = Lichenoid purpura of Gougerot-Blum, early  This particular variant of the persistent pigmented purpuric dermatitides, like the others, is…

Histologic Diagnosis of Inflammatory Skin Diseases

Study By Disease

…24) Condyloma acuminatum (Quiz #510) Confluent and reticulated papillomatosis of Gougerot and Carteaud (Quiz #629) Congenital melanocytic nevus (Quiz #80) Congenital melanocytic nevus on a special site (umbilicus) (Quiz #88) Congenital melanocytic ne…

Dermatology Practical & Conceptual

An itchy rash in a young Caucasian woman

…herpetiformis, linear IgA disease or confluent and reticulated papillomatosis of Gougerot and Carteaud [3]. Clinicopathologic correlation is the key to diagnosis. BÖer and Ackerman, in 2003, defined criteria for histopathologic diagnosis of prurigo p…

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