Hereditary Multiple Osteochondromas
National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Hereditary Multiple Osteochondromas is not the name you expected.
Hereditary multiple osteochondromas (HMO) is a rare genetic disorder characterized by multiple benign (noncancerous) bone tumors that are covered by cartilage (osteochondromas), often on the growing end (metaphysis) of the long bones of the legs, arms, and digits. These osteochondromas usually continue to grow until shortly after puberty and may lead to bone deformities, skeletal abnormalities, short stature, nerve compression and reduced range of motion. Hereditary multiple osteochondromas is inherited as an autosomal dominant genetic condition and is associated with abnormalities (mutations) in the EXT1or EXT2 gene.
Hereditary multiple osteochondromas was formerly called hereditary multiple exostoses.
Genetic and Rare Diseases (GARD) Information Center
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MHE Research Foundation
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MHE and Me- A Support Group for Kids with Multiple Hereditary Exostoses
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- Pine Island, NY 10969-0651
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NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases
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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: 9/19/2012
Copyright 2012 National Organization for Rare Disorders, Inc.
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