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Annular Eruptive Pseudoangiomatosis and Adenovirus Infection: A Novel Clinical Variant of Paraviral Exanthems and a Novel Virus Association.

Annular Eruptive Pseudoangiomatosis and Adenovirus Infection: A Novel Clinical Variant of Paraviral Exanthems and a Novel Virus Association.
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Chuh A, Panzer R, Rosenthal AC, Proksch E, Kempf W, Zawar V, Fickenscher H, Fölster-Holst R,


Chuh A, Panzer R, Rosenthal AC, Proksch E, Kempf W, Zawar V, Fickenscher H, Fölster-Holst R, (click to view)

Chuh A, Panzer R, Rosenthal AC, Proksch E, Kempf W, Zawar V, Fickenscher H, Fölster-Holst R,

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Acta dermato-venereologica 2016 Oct 4() doi 10.2340/00015555-2541

Abstract

Eruptive pseudoangiomatosis is a distinct exanthem thought to be caused by viruses. The usual rash configu-ration is erythematous papules and macules. An association with echovirus infection has been reported. We present here one adult and one child with this exanthem, supported by clinical, histopathological, and immunohistochemical findings. Both patients presented with prodromal symptoms, widespread angioma-like macules in annular configuration, blanchable telangiectasia, followed by spontaneous remission in 6-8 weeks. Lesional histopathology of the adult patient revealed dilated dermal blood vessels and lymphohistiocytic infiltrates predominated by CD4+ lymphocytes with a 5:1 ratio of CD4:CD8 lymphocytes. No B-cells or CD56+ natural killer cells were found. Serology of both patients revealed evidence of active infections by adenoviruses, and a range of other viruses were excluded. We believe that these 2 patients manifested annular eruptive pseudoangio-matosis, a novel variant of the rash with a probable adenovirus association that has not yet been reported.

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