Search Results for: ground substance

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Histologic Diagnosis of Inflammatory Skin Diseases

Ground Substance

…lar and cellular components of the body, including those of the dermis, binds water, and provides hydration to the skin. The ground substance of normal skin consists mainly of water, electrolytes, plasma proteins, and mucopolysaccharides. A…

Therapeutic Strategies in Dermatology

Stings: Key Points

…only associated with anaphylactic reactions. Different hymenoptera members have distinct stinging patterns. Most nest in the ground or in walls and sting only if provoked, with the exception of Africanized bees. Honeybees typically leave a barbed…

Therapeutic Strategies in Dermatology

Photosensitivity Dermatoses: Overview

…ive eczema, actinic reticuloid and persistent light reaction). Photosensitivity dermatoses are caused either by an exogenous substance (either topical or systemic), or are idiopathic. These conditions initially present on sun-exposed skin, may be…

A Clinical Atlas of 101 Common Skin Diseases

Phototoxic Dermatitis

An inflammatory process that represents the combined effects of a toxic substance applied topically or administered systemically in combination with the effects of ultraviolet light, the result being a caricature of sunburn. The lesions consist of…

Therapeutic Strategies in Dermatology

Urticaria: Initial Evaluation

Initial Evaluation Acute urticaria Migrating pruritic edematous papules and plaques of variable size, surrounded by erythema or an area of vasoconstriction (i.e., wheal). Can be intermittent, with the skin returning to normal appearance in less…

Histologic Diagnosis of Inflammatory Skin Diseases

Introduction

…8221; cells, Merkel cells, structures of the dermoepithelial interface, blood vessels, lymphatics, collagen, elastic fibers, ground substance, muscles, and nerves. The strategy is to inform about how the skin looks by examination grossly and by…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…istiocytes of reticulohistiocytic granuloma. Reason: Not only does the cytoplasm of those histiocytes bear no resemblance to ground glass (which is appreciated better by palpation than by observation), but what is called “ground-glass…

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