Search Results for: vesicle

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A Clinical Atlas of 101 Common Skin Diseases

Arthropod Assaults

Papules, nodules, vesicles, and sometimes bullae that develop in response to “bites” of arthropods, among the most common offenders being mosquitoes, bedbugs, and mites of scabies….

A Clinical Atlas of 101 Common Skin Diseases

Herpes Simplex, Zoster, and Varicella

…ins of herpesvirus and typified when fully developed by tense vesicles, herpes simplex consisting of grouped vesicles on an erythematous base, zoster being made up of vesicles, sometimes hemorrhagic ones, that course along a dermatome of an adult usu…

A Clinical Atlas of 101 Common Skin Diseases

Fixed Drug Eruption

Circular orange-red-blue macule(s) or patch(es) that often becomes a papule(s) or plaque(s) and vesiculates, healing with hyperpigmentation, and that occurs repeatedly at the very same cutaneous and/or mucous membrane site(s), especially the genital…

A Clinical Atlas of 101 Common Skin Diseases

Scabies

…the acarus Sarcoptes scabiei and consisting of papules, papulovesicles, papulopustules, and vesicles, some arranged in linear or curvilinear tracks (burrows). Sometimes nodules are present, especially in the interdigital webs and on the genitalia, ni…

A Clinical Atlas of 101 Common Skin Diseases

Bullous Pemphigoid and Herpes Gestationis

…tous macules and patches, urticarial papules and plaques, and vesicles and bullae, the blisters often arising on urticarial plaques. Sometimes lesions are localized, e.g., to the legs. The cause is not known, but the mechanism is thought to be immuno…

A Clinical Atlas of 101 Common Skin Diseases

Pemphigus Foliaceus

A blistering inflammatory disease in which acantholysis occurs in the upper part of the spinous zone or granular zone of the epidermis, the result of the process being flaccid blisters that give way to erosions and crusts accompanied by erythema. Wh…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Vesicular Dermatitis

…s blisters, irrespective of the size of them, that is, small (vesicles) or large (bullae), for two reasons, namely, “vesicular dermatitis” was a major component of one of the patterns set forth as basic in the first and second editions of…

Histologic Diagnosis of Inflammatory Skin Diseases

Arthropod assaults

…sually distributed randomly Individual lesions Papules, papulovesicles, vesicles, and, at times, bullae; crusts form consequent to resolution of vesicles and/or the effects of excoriation Course Usually resolve without treatment in a matter of a few…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…sponse to an insect “bite” A tense intraepidermal vesicle above a wedge-shaped, superficial and deep perivascular and interstitial infiltrate is diagnostic of a “bite” by an insect. The vesicle often is positioned directly abo…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Pustular Dermatitis

…Kaposi’s varicelliform eruption”). As an aside, a vesicle induced by herpesvirus may become a vesiculopustule and then a pustule as a consequence of necrosis of keratocytes secondary to cytopathic effects of the virus, the necrotic epithe…

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