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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 di…

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 si…

Dermatology Practical & Conceptual

Pigmented tumor in the nostril

…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 le…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…tial 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-epithelializ…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Radial Growth Phase versus Vertical Growth Phase of Melanoma?

…ite repeatedly of radial as opposed to vertical growth phases of melanoma when those phrases are not contrasting indicates how flawed is the premise. For many years, Clark and collaborators and their followers published no guidelines designed to allo…

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