LEOPARD Syndrome

National Organization for Rare Disorders, Inc.

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Important
It is possible that the main title of the report LEOPARD Syndrome is not the name you expected.

Disorder Subdivisions

  • None

General Discussion

Summary

LEOPARD syndrome is a rare genetic disorder characterized by abnormalities of the skin, the structure and function of the heart, the inner ear, the head and facial (craniofacial) area, and/or the genitals. In individuals with the disorder, the range and severity of symptoms and physical characteristics may vary from case to case.

LEOPARD is an acronym for the characteristic abnormalities associated with the disorder: L stands for (L)entigines (multiple black or dark brown spots on the skin); (E)lectrocardiographic conduction defects (abnormalities of the electrical activity and the coordination of proper contractions of the heart); (0)cular hypertelorism (widely-spaced eyes); (P)ulmonary stenosis (obstruction of the normal outflow of blood from the right ventricle of the heart); (A)bnormalities of the genitals; (R)etarded growth resulting in short stature; and (D)eafness or hearing loss due to malfunction of the inner ear (sensorineural deafness). Some individuals with LEOPARD syndrome may also exhibit mild intellectual disability, speech difficulties, and/or, in some cases, additional physical abnormalities. LEOPARD syndrome is an autosomal dominant genetic disorder.

Introduction

LEOPARD syndrome and Noonan syndrome are both caused by mutations in the PTPN11 and RAF1 genes.

Supporting Organizations

American Academy of Audiology

11480 Commerce Park Drive
Suite 220
Reston, VA 20191
Tel: 703-790-8466
Fax: 703-790-8631
Tel: 800-222-2336
Email: infoaud@audiology.org
Website: http://www.audiology.org

American Heart Association

7272 Greenville Avenue
Dallas, TX 75231
Tel: (214)784-7212
Fax: (214)784-1307
Tel: (800)242-8721
Email: Review.personal.info@heart.org
Website: http://www.heart.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
Website: http://rarediseases.info.nih.gov/GARD/

Human Growth Foundation

997 Glen Cove Avenue
Suite 5
Glen Head, NY 11545
Tel: (516)671-4041
Fax: (516)671-4055
Tel: (800)451-6434
Email: hgf1@hgfound.org
Website: http://www.hgfound.org/

MAGIC Foundation

6645 W. North Avenue
Oak Park, IL 60302
Tel: (708)383-0808
Fax: (708)383-0899
Tel: (800)362-4423
Email: contactus@magicfoundation.org
Website: http://www.magicfoundation.org

NIH/National Heart, Lung and Blood Institute

P.O. Box 30105
Bethesda, MD 20892-0105
Tel: (301)592-8573
Fax: (301)251-1223
Email: nhlbiinfo@rover.nhlbi.nih.gov
Website: http://www.nhlbi.nih.gov/

RASopathies Network USA

244 Taos Road
Altadena, CA 91001-3953
Tel: (626)676-7694
Email: info@rasopathiesnet.org
Website: http://www.rasopathiesnet.org

Restricted Growth Association

PO Box 5137
Yeovil, BA20 9FF
United Kingdom
Tel: 3001111970
Fax: 3001112454
Email: office@restrictedgrowth.co.uk
Website: http://www.restrictedgrowth.co.uk

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, 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.

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.

Last Updated:  7/23/2012
Copyright  2012 National Organization for Rare Disorders, Inc.