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


Genetic and Rare Diseases Information Center (GARD)

Print friendly version


Other Names for this Disease
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.


Metachondromatosis (MC) is a rare bone disorder characterized by the presence of both multiple enchondromas and osteochondroma-like lesions. The first signs occur during the first decade of life. Osteochondromas most commonly occur in the hands and feet (predominantly in digits and toes), and enchondromas involve the iliac crests and metaphyses of long bones. The lesions typically spontaneously decrease in size or regress. Nerve paralysis or vascular complications may occur in some cases. The condition has been linked to mutations in the PTPN11 gene in several families and is inherited in an autosomal dominant manner. Treatment may include surgery to remove osteochondromas in severe cases.[1]
Last updated: 10/9/2012


  1. Judith Bovee and Christianne Reijnders. Metachondromatosis. Orphanet. May 2011; Accessed 10/8/2012.
Your Questions Answered
by the Genetic and Rare Diseases Information Center

1 question(s) from the public on Metachondromatosis have been answered. See questions and answers. You can also submit a new question.

In Depth Information

  • The Online Mendelian Inheritance in Man (OMIM) is an 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 Metachondromatosis. Click on the link to view a sample search on this topic.

Selected Full-Text Journal Articles