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Disease Profile

McDonough syndrome

Prevalence
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.

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331

US Estimated

514

Europe Estimated

Age of onset

Neonatal

ICD-10

Q87.8

Inheritance

Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.

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Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.

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X-linked
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.

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X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.

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Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.

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Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.

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Not applicable

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Categories

Congenital and Genetic Diseases; Nervous System Diseases

Summary

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

Orpha Number: 2471

Definition
McDonough syndrome is a rare, multiple congenital anomalies/dysmorphic syndrome characterized by facial dysmorphsim (prominent superciliary arcs, synophrys, strabismus, large, anteverted ears, large nose, malocclusion of teeth), delayed psychomotor development, intellectual disability and congenital heart defects (e.g. pulmonic stenosis, patent ductus arteriosus, atrial septal defect). Additional features include thorax deformation (pectus excavatum/carinatum), kyphoscoliosis, diastasis recti and cryptorchidism. There have been no further descriptions in the literature since 1984.

Visit the Orphanet disease page for more resources.

Symptoms

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
Learn More:
HPO ID
80%-99% of people have these symptoms
Abnormality of cardiovascular system morphology
0030680
Aplasia/Hypoplasia of the abdominal wall musculature
Absent/small abdominal wall muscles
Absent/underdeveloped abdominal wall muscles

[ more ]

0010318
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation

[ more ]

0001249
Kyphosis
Hunched back
Round back

[ more ]

0002808
Macrotia
Large ears
0000400
Open bite
Absence of overlap of upper and lower teeth
Open bite between upper and lower teeth

[ more ]

0010807
Prominent nose
Big nose
Disproportionately large nose
Increased nasal size
Increased size of nose
Large nose
Pronounced nose

[ more ]

0000448
Prominent supraorbital ridges
Prominent brow
0000336
Protruding ear
Prominent ear
Prominent ears

[ more ]

0000411
Scoliosis
0002650
Short stature
Decreased body height
Small stature

[ more ]

0004322
Strabismus
Cross-eyed
Squint
Squint eyes

[ more ]

0000486
Synophrys
Monobrow
Unibrow

[ more ]

0000664
30%-79% of people have these symptoms
Abnormal palate morphology
Abnormality of the palate
Abnormality of the roof of the mouth

[ more ]

0000174
Bilateral single transverse palmar creases
0007598
Cachexia
Wasting syndrome
0004326
Cryptorchidism
Undescended testes
Undescended testis

[ more ]

0000028
Dental malocclusion
Bad bite
Malalignment of upper and lower dental arches
Misalignment of upper and lower dental arches

[ more ]

0000689
Hypertelorism
Wide-set eyes
Widely spaced eyes

[ more ]

0000316
Low-set, posteriorly rotated ears
0000368
Mandibular prognathia
Big lower jaw
Increased projection of lower jaw
Increased size of lower jaw
Large lower jaw
Prominent chin
Prominent lower jaw

[ more ]

0000303
Micrognathia
Little lower jaw
Small jaw
Small lower jaw

[ more ]

0000347
Pectus excavatum
Funnel chest
0000767
Ptosis
Drooping upper eyelid
0000508
Short palpebral fissure
Short opening between the eyelids
0012745
Short philtrum
0000322
Underdeveloped nasal alae
Underdeveloped tissue around nostril
0000430
Percent of people who have these symptoms is not available through HPO
Abnormal facial shape
Unusual facial appearance
0001999
Aortic valve stenosis
Narrowing of aortic valve
0001650
Atrial septal defect
An opening in the wall separating the top two chambers of the heart
Hole in heart wall separating two upper heart chambers

[ more ]

0001631
Autosomal recessive inheritance
0000007
Clinodactyly
Permanent curving of the finger
0030084
Diastasis recti
Gap between large left and right abdominal muscles
0001540
Furrowed tongue
Grooved tongue
0000221
Hypoplastic toenails
Underdeveloped toenails
0001800
Kyphoscoliosis
0002751
Pectus carinatum
Pigeon chest
0000768
Pulmonic stenosis
Narrowing of pulmonic valve
0001642
Radial deviation of finger
0009466
Single transverse palmar crease
0000954
Sparse hair
0008070
Upslanted palpebral fissure
Upward slanting of the opening between the eyelids
0000582
Ventricular septal defect
Hole in heart wall separating two lower heart chambers
0001629

Organizations

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.

Organizations Supporting this Disease

    Learn more

    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 McDonough syndrome. Click on the link to view a sample search on this topic.