This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.
|Medical Terms||Other Names||
|80%-99% of people have these symptoms|
|Abnormality of epiphysis morphology||
Abnormal shape of end part of bone
|Abnormality of the metaphysis||
Abnormality of the wide portion of a long bone
Death of bone due to decreased blood supply
|Cranial nerve paralysis||0006824|
Formation of new noncancerous bone on top of existing bone
|Percent of people who have these symptoms is not available through HPO|
|Abnormal joint morphology||
Abnormal shape of joints
Abnormality of the joints
Anomaly of the joints[ more ]
|Bowing of the long bones||
Bowed long bones
Bowing of long bones[ more ]
|Multiple digital exostoses||0005655|
Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.
If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.
If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.
You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.
Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.
Conditions with similar signs and symptoms from Orphanet
The differential diagnosis should include hereditary multiple osteochondromas (MO; see this term) in which the long bones are predominantly affected and the lesions point away from the joint/growth plate and may result in shortening or deformity of the affected bones. Other diseases to be considered include the non-hereditary conditions Ollier disease and Maffucci syndrome (in which multiple enchondromas are found in the medulla of the bone and are predominantly unilateral), and dysplasia epiphysealis hemimelica (DEH; characterized by a cartilaginous overgrowth mainly located in the lower extremities on one side of the body) (see these terms).
Visit the Orphanet disease page for more information.
Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know. Submit a new question
My daughter, 5 yrs old, has three lumps on her right shin that have not gone away. I am starting to look up what this might be and am scheduled for an ultrasound and x-ray for her soon. I was researching metachondromatosis - is this something that when felt is attached to the bone itself, is it bone, or is it a lump that can be moved around? See answer