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  • PMID: 24071786 was deleted because it is a duplicate of PMID: 24452984
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Singapore Med J. 2014 Jan;55(1):e4-6.

Recurrent and persistent pityriasis rosea: an atypical case presentation.

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Department of Dermatology, National Skin Centre, 1 Mandalay Road, Singapore 308205.


We report a case of atypical pityriasis rosea in a 24-year-old Malay man. He presented with an 11-month history of three recurrent and persistent episodes of pityriasis rosea associated with oral ulcers. The first episode lasted for one month and recurred within 14 days. The second episode lasted for three months and recurred within nine days. The third episode lasted for seven months. Although all three episodes were not preceded by any prodromal symptoms, a herald patch was noted on three different sites (the left iliac fossa, abdomen and chest) on each successive episode. Recurrent pityriasis rosea and its association with oral ulcers, although quite uncommon, have been reported in the literature. However, reports of multiple recurrences, with prolonged duration of each episode and very short remissions in between, have not been made. To the best of our knowledge, this is the first report of such unique presentation.

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