Your browser does not support javascript:   Search for gard hereSearch for news-and-events here.

Diseases

Genetic and Rare Diseases Information Center (GARD)

Print friendly version

Giant congenital nevus


Other Names for this Disease

  • Bathing trunk nevus
  • Congenital giant pigmented nevus
  • Congenital hairy nevus
  • Giant hairy nevus
  • Giant pigmented hairy nevus
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.

Overview

A congenital giant nevus is a dark-colored, often hairy patch of skin that is present at birth. It is usually smaller in infants and children, but continues to grow with the child. A giant pigmented nevus is usually larger than 20cm in diameter once it stops growing. They are often found on the buttocks, which is known as "bathing trunk" nevi. Skin cancer (such as malignant melanoma and other types) may develop in up to 15% (1 out of 6) of people with larger or giant nevi, often in childhood. The risk is higher for larger or giant congenital nevi located on the back or abdomen.[1][2]
Last updated: 6/23/2011

References

  1. Vorvick LJ. Giant congenital nevus. MedlinePlus. October 2010; http://www.nlm.nih.gov/medlineplus/ency/article/001453.htm. Accessed 6/23/2011.
  2. Congenital melanocytic naevi. DermNet NZ. June 2009; http://dermnetnz.org/lesions/congenital-naevus.html. Accessed 6/23/2011.
Your Questions Answered
by the Genetic and Rare Diseases Information Center

Please contact us with your questions about Giant congenital nevus. We will answer your question and update these pages with new resources and information.

Basic Information

  • DermNet NZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated. DermNet NZ provides information about this condition.
  • MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
    Congenital Hairy Nevi - Plastic Surgery
    Congenital Nevi - Dermatology
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Giant congenital nevus. Click on the link to view a sample search on this topic.
Other Names for this Disease
  • Bathing trunk nevus
  • Congenital giant pigmented nevus
  • Congenital hairy nevus
  • Giant hairy nevus
  • Giant pigmented hairy nevus
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.