Search Results for: scale

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Histologic Diagnosis of Inflammatory Skin Diseases

Impetigo contagiosa

…opathologically, in evolving and fully developed lesions, they show spongiform and subcorneal pustules, and in late lesions, scale-crusts laden with neutrophils. Clinically, bullous impetigo, which is nothing other than a blistering manifestation of…

Histologic Diagnosis of Inflammatory Skin Diseases

Photoallergic dermatitis

…cytes Marked edema of the papillary dermis Slight acanthosis Spongiotic vesicles Cornified layer either normal or covered by scale-crusts Late Superficial or superficial and deep perivascular and interstitial infiltrate of lymphocytes mostly Uneven…

Histologic Diagnosis of Inflammatory Skin Diseases

Histiocytosis X

…infiltrates of abnormal Langerhans’ cells situated mostly in the upper part of the dermis. What seem clinically to be scales actually are scale-crusts formed by parakeratosis, serum, and inflammatory cells, especially neutrophils….

Large cell acanthoma: a debate throughout the decades

Large cell acanthoma: a debate throughout the decades

…atures in a case of ours were a brown, “broken up” pseudonetwork, scattered gray, brown dots and foci of surface scale (Figure 1A-C). Figure 1A. A sharply demarcated patch on sun exposed skin. [Copyright: ©2014 Patsatsi et al.] Figure…

Differential Diagnosis in Dermatopathology

Mucha-Habermann disease vs. Secondary syphilis

An inflammatory disease characterized by lesions with arcuate, annular, and serpiginous outlines and by collarettes of scale on the inner margin of lesions that extend outward in centrifugal fashion, disappearing in months as a rule in the absence…

Histologic Diagnosis of Inflammatory Skin Diseases

Gianotti-Crosti disease

…and/or scale-crusts Late Same as in a lesion developed fully, but with less spongiosis, more acanthosis, and more prominent scale-crusts Correlation clinicopathologic Papules result from spongiosis, edema of the papillary dermis, and a perivascular…

Histologic Diagnosis of Inflammatory Skin Diseases

Pemphigus foliaceus

…t themselves in several ways. In some instances, flaccid blisters are apparent, whereas in others no blisters are seen, only scale-crusts being observable. That the scale-crusts are manifestations of a blistering disease may be inferred because they…

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