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Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Inverted Follicular Keratosis, Tricholemmoma, and Desmoplastic Tricholemmoma?

…urprisingly, some resolving verrucae show attributes together of both inverted follicular keratosis and tricholemmoma. Desmoplastic tricholemmoma exhibits changes histopathologic of tricholemmoma and, in addition, signs of pseudocarcinomatous hyperpl…

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

Lupus erythematosus

…slightly scaly, by subacute is meant scaly plaques punctuated often by “follicular” (more properly designated “infundibular”) plugs of horn, and chronic being patches of hypo- and hyperpigmentation associated often with atroph…

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