Search Results for: vesicle

Histologic Diagnosis of Inflammatory Skin Diseases

Images

….50.4B: Surfeit of eosinophils in the blister and extensive epidermal necrosis = Incontinentia pigmenti, vesicular stage The vesicle in incontinentia pigmenti comes into being as a rule solely by spongiosis. This example is exceptional; ballooning…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…mal vesiculation, a phenomenon that also may develop in that condition 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…

Histologic Diagnosis of Inflammatory Skin Diseases

Leukocytoclastic vasculitis

…of the papillary dermis and intraepidermal vesicles from a combination of spongiosis and ballooning. A tense intraepidermal vesicle may burst to become subepidermal. By the time vesicles have formed in an epidermis, signs of necrosis usually have…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…is that in foci is hypergranulotic and hyperkeratosis = “Bullous” lichen planus The tiny blister shown here is a vesicle, not a bulla, and it came into being by virtue of the process of lichen planus being accelerated greatly, analogous…

Histologic Diagnosis of Inflammatory Skin Diseases

Study By Disease

…iz #540) Telangiectasia macularis eruptiva perstans (Quiz #420) Telangiectasia macularis eruptiva perstans (Quiz #430) Tense vesicle in response to the “bite” directly of an insect (Quiz #218) Tinea versicolor (Quiz #198) Traumatic…

Differential Diagnosis in Dermatopathology

Discussions

…mall papules are keratotic, lesions of Grover’s disease are smooth-surfaced papules and, much less often, subtle papulovesicles. They have a predilection for the V of the chest, trunk, flanks, and thighs. Mucous membranes and nail units are…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…ault Urtica 1. Marked edema of the papillary dermis sometimes 1. No edema noticeable in the papillary dermis 2. Subepidermal vesicle sometimes secondary to marked edema of the papillary dermis 2. No subepidermal vesiculation 3. Many erythrocytes…

Differential Diagnosis in Dermatopathology

Discussions

…es and eosinophils, scatter of eosinophils interstitially, edema of the papillary dermis, and a central tense intraepidermal vesicle. The changes in the dermis just described are encountered in an urticarial response to assaults by arthropods. There…