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

Branchiootic syndrome



Other Names:
BOS1; BO syndrome 1; Branchiootic dysplasia
Categories:

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

Orpha Number: 52429

Definition
Branchiootic syndrome is a rare, genetic multiple congenital anomalies syndrome characterized by second branchial arch anomalies (branchial cysts and fistulae), malformations of the outer, middle and inner ear associated with sensorineural, mixed or conductive hearing loss, and the absence of renal abnormalities. Typical ear findings consist of malformed auricles (e.g. lop or cupped ears), preauricular pits and/or tags, and middle and/or inner ear dysplasias (inculding cochlear, vestibular and semicircular channel hypoplasia, malformation of the ossicles and of middle ear space).

Visit the Orphanet disease page for more resources.
Last updated: 11/1/2017

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
80%-99% of people have these symptoms
Preauricular pit
Pit in front of the ear
0004467
30%-79% of people have these symptoms
Atresia of the external auditory canal
Absent ear canal
0000413
Branchial fistula 0009795
Conductive hearing impairment
Conductive deafness
Conductive hearing loss
[ more ]
0000405
Morphological abnormality of the middle ear
Middle ear malformation
0008609
Sensorineural hearing impairment 0000407
5%-29% of people have these symptoms
Abnormal nasolacrimal system morphology 0000614
Cleft palate
Cleft roof of mouth
0000175
Facial asymmetry
Asymmetry of face
Crooked face
Unsymmetrical face
[ more ]
0000324
Facial palsy
Bell's palsy
0010628
Lip pit 0100267
Micrognathia
Little lower jaw
Small jaw
Small lower jaw
[ more ]
0000347
Preauricular skin tag 0000384
Percent of people who have these symptoms is not available through HPO
Autosomal dominant inheritance 0000006
Cochlear malformation 0008554
Cupped ear
Cup-shaped ears
Simple, cup-shaped ears
[ more ]
0000378
Dilatated internal auditory canal 0004458
Hypoplasia of the cochlea 0008586
Incomplete penetrance 0003829
Low-set ears
Low set ears
Lowset ears
[ more ]
0000369
Microtia
Small ears
Underdeveloped ears
[ more ]
0008551
Mixed hearing impairment
Hearing loss, mixed
Mixed hearing loss
[ more ]
0000410
Retrognathia
Receding chin
Receding lower jaw
Weak chin
Weak jaw
[ more ]
0000278
Variable expressivity 0003828
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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 Branchiootic syndrome. Click on the link to view a sample search on this topic.

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