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Mysterious chronic skin lesions
  1. Hortense Petat1,2,
  2. Billal Tedbirt3,
  3. Abdeljallil Zeggay4,
  4. Isabelle Michelet5,
  5. Claire Morin5,
  6. Christophe Marguet5
  1. 1 Pediatric Department, Hôpital Charles Nicolle, Rouen, France
  2. 2 INSERM 1311, Dynamicure, Rouen, France
  3. 3 Dermatology, CHU Charles Nicolle, Rouen, France
  4. 4 Infectious Diseases, CHU Charles Nicolle, Rouen, France
  5. 5 Pediatrics, CHU Charles Nicolle, Rouen, France
  1. Correspondence to Dr Hortense Petat, Pediatric department, Hôpital Charles Nicolle, Rouen, Normandy, France; hortense.petat{at}

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A 10-year-old boy presented to our paediatric emergency department with a 10-month history of chronic diffuse cutaneous lesions including a recent lesion on the thumb (figure 1). The child was born in the Comoros, an East African island, and moved to Mayotte, a French East African island, at the age of 6 months with his family. He arrived in France in January 2022, and the lesions were first noted in February by his mother. He had three brothers who were well. His parents were not related, and he had not seen his father in a long time. His vaccinations were up to date. There was no …

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  • Contributors All authors (HP, BT, AZ, CMo, IM and CMa) participated in the diagnosis, complementary exams and treatment of the disease, and reviewed and approved the manuscript. HP wrote the manuscript and took pictures.

  • 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.