Cobblestone-like rashes on the penis

A young boy presented to the dermatology clinic with asymptomatic papillomatous brown plaques on his penis that had appeared two weeks previously. He denied itching, pain, or other physical complaints. There was no previous inflammation and trauma at the same site. A fungal direct microscopic examin...

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Bibliographic Details
Published in:BMJ (Online) 2022-10, Vol.379, p.e070996-e070996
Main Authors: Zhang, Li-Wen, Wang, Wen-Ju, Chen, Tao
Format: Article
Language:English
Subjects:
Case reports
Dermatitis
Endgames
Pediatrics
Penis
Plaques
Pruritus
Trauma
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Description
Summary:A young boy presented to the dermatology clinic with asymptomatic papillomatous brown plaques on his penis that had appeared two weeks previously. He denied itching, pain, or other physical complaints. There was no previous inflammation and trauma at the same site. A fungal direct microscopic examination was negative. Dermoscopy revealed multiple brown polygonal granules with a cobblestone pattern (fig 1a). The plaques were partially removed with a 75% ethyl alcohol swab (fig 1b) but had no response to cleaning with soap and water.
ISSN:1756-1833
1756-1833
DOI:10.1136/bmj-2022-070996