Search Results for: vesicle

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ame into being as a result of rupture of tense intraepidermal vesicles. The intraepidermal vesicles developed mostly as a consequence of ballooning of keratocytes, rather than of spongiosis. 10.32.4A: Vesicular dermatitis, subepidermal, lymphocytes p…

Histologic Diagnosis of Inflammatory Skin Diseases

Farmyard pox

…lignant pustule) begins as a papule, but soon develops into a vesicle associated with necrosis and surrounded at times by small satellite vesicles. Findings histopathologic Fully developed Ballooning of cells in the upper third of the spinous zone Eo…

Histologic Diagnosis of Inflammatory Skin Diseases

Impetigo contagiosa

…Arrangement of lesions Grouped or figurate Individual lesions Vesicles that rapidly become pustules; honey-colored crusts as pustules resolve; bullae rarely Course Lesions resolve in weeks Variations clinical Nonbullous impetigo Bullous impetigo (sta…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…rising, therefore, that sometimes it presents itself as papulovesicles in addition to papules. In the latter circumstance, crust, as well as scale, may form, as pictured here. 10.44.10A: Perivascular dermatitis, lymphocytes predominant + 10.44.10B: F…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Primary and Secondary Lesions?

…include macules, patches, papules, plaques, nodules, tumors, vesicles, pustules, and bullae. Secondary lesions, by contrast, are said to be scales, crusts, erosions, ulcers, excoriations, lichenification, and fissures. Regrettably, the concept of pr…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…dermal necrosis = Incontinentia pigmenti, vesicular stage The vesicle in incontinentia pigmenti comes into being as a rule solely by spongiosis. This example is exceptional; ballooning is present as well as spongiosis. 10.50.5A: Perivascular dermatit…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ndition as a consequence of rupture of a tense intraepidermal vesicle. 10.58.4A: Vasculitis, small-vessel, neutrophilic + 10.58.4B: Neutrophils and nuclear “dust” of neutrophils in perivascular and interstitial array in company with fibri…

Histologic Diagnosis of Inflammatory Skin Diseases

Leukocytoclastic vasculitis

…ons Macules, edematous papules, purpuric papules, hemorrhagic vesicles, vesiculopustules, ulcers, and, sometimes, scars Course Lesions usually disappear in a few weeks Variations clinical Henoch-Schönlein purpura is a particular expression of leukocy…