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‘Doctor, why is my baby’s arm black?’ The neonatal presentation of a Giant Congenital Melanocytic Naevus
  1. Kate Frances Parmenter,
  2. Aishin Lok
  1. Leeds Centre for Newborn Care, Leeds General Infirmary, Leeds, West Yorkshire, UK
  1. Correspondence to Dr Kate Frances Parmenter, Leeds centre for Newborn Care, Leeds General Infirmary, Leeds LS1 3EX, UK; kate.parmenter{at}

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A baby boy presented at birth with a large uniform, dark blue hypertrophic skin lesion on the right arm. The lesion was circumferential extending from the ventral aspect of the wrist to the border of the shoulder margin with two further denser foci on the dorsalaspect of the mid-right arm, measuring 9×6 mm and 6×3 mmrespectively (figures 1 and 2). Hypertrichosis was noted on the lesion without satellites or pigmentation elsewhere. Neurovascular examination of the upper limbs was …

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  • Collaborators Dr Kathryn Johnson, MBChB, FRCPCH, Consultant Neonatologist and Research Lead, Leeds Neonatal Service, D floor. Martin Wing, Leeds General Infirmary, Great George St., Leeds LS1 3EX. Tel: 0113 3928537.

  • Contributors KFP produced the images, gained consent for use of images and case for report, wrote the material enclosed and submitted the article. Senior registrar AL and Consultant Dr K Johnson reviewed and commented on article content as a peer review body.

  • 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.

  • Patient consent for publication Parental/guardian consent obtained.

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