National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Ramon Syndrome



Other Names:
Cherubism, gingival fibromatosis, epilepsy, mental deficiency, hypertrichosis, and stunted growth; Gingival fibromatosis combined with cherubism
Categories:

The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
orphanet

Orpha Number: 3019

Definition
A rare, genetic, primary bone dysplasia syndrome characterized by bilateral, painless swelling of the face extending from the mandible to the inferior orbital margins (cherubism), epilepsy, gingival fibromatosis (possibly obscuring teeth), and intellectual disability. Other associated variable features include hypertrichosis, stunted growth, juvenile rheumatoid arthritis, and development of ocular abnormalities (e.g. pigmentary retinopathy, optic disc pallor, Axenfeld anomaly). Radiological images typically show bilateral multifocal radiolucency involving the body, angle and ramus of the mandible and coronoid process.

Visit the Orphanet disease page for more resources.
Last updated: 2/1/2019

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.

Showing of 31 |
Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
Failure to thrive
Faltering weight
Weight faltering
[ more ]
0001508
Full cheeks
Apple cheeks
Big cheeks
Increased size of cheeks
Large cheeks
[ more ]
0000293
Gingival fibromatosis 0000169
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ]
0001249
Narrow palate
Narrow roof of mouth
0000189
Osteolysis
Breakdown of bone
0002797
Seizure 0001250
30%-79% of people have these symptoms
Abnormality of retinal pigmentation 0007703
Delayed eruption of teeth
Delayed eruption
Delayed teeth eruption
Delayed tooth eruption
Eruption, delayed
Late eruption of teeth
Late tooth eruption
[ more ]
0000684
Generalized hirsutism
Excessive hairiness over body
0002230
5%-29% of people have these symptoms
Abnormal anterior chamber morphology 0000593
Abnormality of dental enamel
Abnormal tooth enamel
Enamel abnormalities
Enamel abnormality
[ more ]
0000682
Conductive hearing impairment
Conductive deafness
Conductive hearing loss
[ more ]
0000405
Diabetes mellitus 0000819
Hyperkeratosis 0000962
Sensorineural hearing impairment 0000407
Telangiectasia of the skin 0100585
Percent of people who have these symptoms is not available through HPO
Angiokeratoma 0001014
Autosomal recessive inheritance 0000007
Axenfeld anomaly 0001492
Decreased body weight
Decreased weight
Low body weight
Low weight
Weight less than 3rd percentile
[ more ]
0004325
Enlarged labia minora 0008683
Hearing impairment
Deafness
Hearing defect
[ more ]
0000365
Hypertrichosis 0000998
Juvenile rheumatoid arthritis 0005681
Kyphosis
Hunched back
Round back
[ more ]
0002808
Optic disc pallor 0000543
Pigmentary retinopathy 0000580
Scoliosis 0002650
Short stature
Decreased body height
Small stature
[ more ]
0004322
Telangiectasia 0001009
Showing of 31 |
Last updated: 7/1/2020

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.

Healthcare Resources


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.

In-Depth Information

  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Online Mendelian Inheritance in Man (OMIM) is a 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 Ramon Syndrome. Click on the link to view a sample search on this topic.

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