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Miscellanea
Images in paediatrics
Hyperpigmented pityriasis versicolor misdiagnosed as acanthosis nigricans
  1. Benedetta Bossini1,
  2. Michele Mazzolai1,
  3. Irene Berti2,
  4. Egidio Barbi1,2
  1. 1 University of Trieste, Trieste, Italy
  2. 2 Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy
  1. Correspondence to Dr Michele Mazzolai, University of Trieste, Trieste, Friuli-Venezia Giulia, Italy; michele.mazzolai90{at}gmail.com

http://dx.doi.org/10.1136/archdischild-2021-322030

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    A 15-year-old girl presented with a 3-month history of non-pruritic hyperpigmented macules on her back (figure 1). Her history included severe obesity and hyperinsulinism. The lesions were previously diagnosed as acanthosis nigricans.

    Figure 1

    Well-demarcated, coalescing, hyperpigmented macules on the patient’s back.

    Physical examination showed well-demarcated, coalescing and finely scaling macules on the back. Examination with a Wood lamp revealed a yellow-green fluorescence. A diagnosis of pityriasis versicolor (PV) was made. Oral treatment with 2 weeks of fluconazole was …

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    Footnotes

    • Contributors BB and MM wrote the first draft of this work and no funding was received to write it. BB and MM drafted the manuscript and approved the final manuscript as submitted. BB, EB, IB and MM contributed to achieving the clinical diagnosis of the case.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; internally peer reviewed.