We describe a 78-year-old woman with polycythaemia rubra vera who had multiple tiny follicular hyperkeratotic spicules on the cheeks. She was receiving treatment with oral hydroxyurea, but no topical agents had been applied to her face. Histopathological study demonstrated numerous Demodex folliculorum mites within dilated follicular infundibula, and we consider that the mites were playing a part in the aetiology of the skin lesions.

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Use of the 6-minute walk/run test to predict peak oxygen uptake in adolescents Teste de corrida/caminhada de 6 minutos para a predição do consumo de oxigênio de pico em adolescentes

A 64-year-old female had breast carcinoma of the right breast, and a mastectomy was performed. Three years later she developed a vesiculobullous eruption along the surgical scar. Histopathological and direct immunofluorescence findings were consistent with a diagnosis of pemphigus vulgaris. We discuss the possible pathogenesis for this striking linear distribution of the pemphigus vulgaris lesions.