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    Pachyonychia Congenita

    Important
    It is possible that the main title of the report Pachyonychia Congenita is not the name you expected.

    Disorder Subdivisions

    • pachyonychia congenita type 1 (PC-1)
    • pachyonychia congenita type 2 (PC-2)

    General Discussion

    Pachyonychia congenita is a rare disorder inherited in an autosomal dominant fashion. It can be divided into two main forms, PC type 1 and PC type 2. The predominant features common to both types are thick nails (hypertrophic nail dystrophy), thick skin on the palms and soles (focal palmoplantar keratoderma) and a white outer layer on the tongue and cheek (oral leukokeratosis). PC-2 is distinguished from PC-1 by the presence of widespread pilosebaceous (associated with hair and related glands) cysts, or cysts that normally develop during puberty; in PC-1 there may be a limited distribution of cysts. Teeth that are present at birth (natal teeth) are a specific feature of PC-2 but they are not always present (not fully penetrant). Pachyonychia congenita is caused by disruptions or changes (mutations) of one of several different genes.

    Resources

    National Foundation for Ectodermal Dysplasias
    6 Execuitive Drive
    Suite 2
    Fairview Hiights, IL 62208
    Tel: (618)566-2020
    Fax: (618)566-4718
    Email: info@nfed.org
    Internet: http://www.nfed.org

    Pachyonychia Congenita Project
    2386 East Heritage Way, Suite B
    Salt Lake City, UT 84109
    Tel: (877)628-7300
    Fax: (877)628-7399
    Tel: (877)628-7300
    Email: pcproject@pachyonychia.org
    Internet: http://www.pachyonychia.org

    Genetic and Rare Diseases (GARD) Information Center
    PO Box 8126
    Gaithersburg, MD 20898-8126
    Tel: (301)251-4925
    Fax: (301)251-4911
    Tel: (888)205-2311
    TDD: (888)205-3223
    Internet: http://rarediseases.info.nih.gov/GARD/

    Ectodermal Dysplasia Society
    Unit 1 Maida Vale Business Centre
    Leckhampton
    Cheltenham
    Gloucestershire
    England, GL53 7ER
    United Kingdom
    Tel: 4401242261332
    Tel: 4407805775703
    Email: diana@ectodermaldysplasia.org
    Internet: http://www.ectodermaldysplasia.org

    For a Complete Report:

    This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

    The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

    It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

    This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

    For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

    Last Updated: 5/8/2012
    Copyright 2005, 2009, 2012 National Organization for Rare Disorders, Inc.

    WebMD Medical Reference from the National Organization for Rare Disorders

    Last Updated: May 28, 2015
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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