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Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Perivasculitis?

…h the wall of larger vessels and, therefore, the very presence of inflammatory cells in the wall of those vessels qualifies the process as vasculitis. The overwhelming majority of inflammatory processes in the skin are not associated with any sign of…

Histologic Diagnosis of Inflammatory Skin Diseases

Hailey-Hailey disease

…pemphigus vulgaris. Before acantholysis supervenes in lesions of Hailey-Hailey disease, however, the cytoplasm of affected epidermal cells becomes eosinophilic, a sign that cornification has begun to occur. Unlike pemphigus vulgaris, Hailey-Hailey d…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Lymphocytic Vasculitis?

…in different ways by different authors. […] The purpose of this report is to suggest reconsideration of the diagnostic criteria of lymphocytic vasculitis.” Oh CW, Lee SH, Heo EP. A case suggesting lymphocytic vasculitis as a presenting s…

Dermatology Practical & Conceptual

Pigmented tumor in the nostril

…d inverted follicular keratosis. Observation We present a case of a white 64-year-old man, with no significant co-morbidities, who had a remote history of a prolonged sun exposure. The patient presented with an asymptomatic nodular growth and brown l…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…itial infiltrate of neutrophils and nuclear “dust” of neutrophils = Leukocytoclastic vasculitis, fully developed Beneath the necrotic epidermis, marked by a red rather than a blue hue as is seen normally, there are signs of re-epitheliali…

Histologic Diagnosis of Inflammatory Skin Diseases

Miliaria rubra

…noted in and around acrosyringia in some examples indubitable of miliaria rubra, but it is not a consistent finding in that condition or a sure sign of it. A clue to diagnosis of miliaria rubra in the absence of spongiosis in an acrosyringium is spr…

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