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

X-linked intellectual disability-plagiocephaly syndrome


Other Names:
Mental retardation, X-linked, with craniofacial dysmorphism; Mental retardation, X-linked, Hyde-Forster type; Hyde Forster Mccarthy Berry syndrome
Categories:
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
orphanet

Orpha Number: 2898

Definition
A rare, syndromic intellectual disability characterized by severe intellectual deficit, brachycephaly, plagiocephaly, and prominent forehead in male patients. Females may display moderate intellectual deficit without craniofacial dysmorphism. There have been no further descriptions in the literature since 1992.

Visit the Orphanet disease page for more resources.
Last updated: 3/1/2019

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.

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Medical Terms Other Names
Learn More:
HPO ID
30%-79% of people have these symptoms
Brachycephaly
Short and broad skull
0000248
Bradycardia
Slow heartbeats
0001662
Coarse facial features
Coarse facial appearance
0000280
Decreased fetal movement
Less than 10 fetal movements in 12 hours
0001558
Delayed speech and language development
Deficiency of speech development
Delayed language development
Delayed speech
Delayed speech acquisition
Delayed speech development
Impaired speech and language development
Impaired speech development
Language delay
Language delayed
Language development deficit
Late-onset speech development
Poor language development
Speech and language delay
Speech and language difficulties
Speech delay
[ more ] 		0000750
Developmental stagnation 0007281
Diffuse cerebral atrophy 0002506
Flat occiput 0005469
Intellectual disability, moderate
IQ between 34 and 49
0002342
Intellectual disability, severe
Early and severe mental retardation
Mental retardation, severe
Severe mental retardation
[ more ] 		0010864
Microcephaly
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference
[ more ] 		0000252
Morning myoclonic jerks 0007000
Plagiocephaly
Flat head syndrome
Flattening of skull
Rhomboid shaped skull
[ more ] 		0001357
Prominent forehead
Pronounced forehead
Protruding forehead
[ more ] 		0011220
Percent of people who have these symptoms is not available through HPO
Frontal bossing 0002007
X-linked inheritance 0001417
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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 X-linked intellectual disability-plagiocephaly syndrome. Click on the link to view a sample search on this topic.

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