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CASE REPORT
Basal cell carcinoma arising in a congenital melanocytic naevus in an adult
  1. Lillian Cooper1,
  2. Karthik Srinivasan2,
  3. Nora Nugent3
  1. 1NHS, London, UK
  2. 2Queen Elizabeth Hospital Birmingham, Birmingham, UK
  3. 3Queen Victoria Hospital NHS Foundation Trust, East Grinstead, West Sussex, UK
  1. Correspondence to Lillian Cooper, lillicooper{at}doctors.org.uk

Summary

Congenital melanocytic naevi (CMN) are common skin lesions. They harbour a risk of malignant transformation, and various lesions have been described as developing within them. A basal cell cancer occurring within a CMN has never previously been described. A case is described of a woman aged 52 years presenting with a slow-growing, symptomatic 3 cm lesion in the centre of a 10×5 cm CMN on her right upper back. Diagnostic core biopsy revealed an ulcerated, infiltrative basal cell carcinoma which was then further excised. The scar has healed with no evidence of local recurrence at 1-year follow-up.

https://doi.org/10.1136/bcr-2016-217429

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    Footnotes

    • Contributors All authors have substantially contributed to the following: conception and design, acquisition of data or analysis and interpretation of data (LC, KS, NN). LC is responsible for drafting the article or revising it critically for important intellectual content. LC, KS and NN are responsible for final approval of the version published. LC is responsible for agreement to be accountable for the article and to ensure that all questions regarding the accuracy or integrity of the article are investigated and resolved.

    • Competing interests None declared.

    • Patient consent Obtained.

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