Overview
Hidrotic ectodermal dysplasia, Halal type, is an extremely rare genetic condition that belongs to a group of disorders called ectodermal dysplasias. These conditions affect the development of structures that come from the outer layer of the embryo (the ectoderm), including hair, nails, teeth, and sweat glands. The Halal type is a specific form of hidrotic ectodermal dysplasia, meaning that sweat gland function is generally preserved (people can still sweat), which distinguishes it from other forms of ectodermal dysplasia where sweating is absent or reduced. People with this condition typically experience abnormalities of the hair, nails, and sometimes teeth. Hair may be sparse, thin, or brittle. Nails can be thickened, discolored, or abnormally shaped. Some individuals may also have mild differences in facial features and other developmental findings. The condition was described in a small number of families, and the full range of symptoms may vary from person to person. There is currently no cure for this condition. Treatment focuses on managing symptoms and improving quality of life. This may include dermatological care for hair and nail problems, dental treatments if teeth are affected, and supportive therapies as needed. Regular follow-up with specialists familiar with ectodermal dysplasias is important for monitoring and addressing any new concerns as they arise.
Also known as:
Key symptoms:
Sparse or thin hairBrittle hair that breaks easilyThickened or abnormally shaped nailsDiscolored nailsSlow-growing nailsDental abnormalities such as small or missing teethMild differences in facial featuresDry or rough skinNormal or near-normal sweating ability
Clinical phenotype terms (18)— hover any for plain English
Autosomal dominant
Passed on from just one parent; each child has about a 50% chance of inheriting it
Childhood
Begins in childhood, roughly ages 1 to 12
Treatments
No FDA-approved treatments are currently listed for Hidrotic ectodermal dysplasia, Halal type.
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Specialists
View all specialists →No specialists are currently listed for Hidrotic ectodermal dysplasia, Halal type.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to Hidrotic ectodermal dysplasia, Halal type.
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Caregiver Resources
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Family & Caregiver Grants
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Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What specific type of ectodermal dysplasia does my child have, and how was this determined?,Is genetic testing recommended, and could it help clarify the diagnosis?,What dental treatments will my child likely need as they grow?,Are there any treatments that can improve hair or nail growth?,Should we see any additional specialists, such as a dermatologist or psychologist?,Is there a risk of passing this condition to future children?,Are there any clinical trials or research studies we could participate in?
Common questions about Hidrotic ectodermal dysplasia, Halal type
What is Hidrotic ectodermal dysplasia, Halal type?
Hidrotic ectodermal dysplasia, Halal type, is an extremely rare genetic condition that belongs to a group of disorders called ectodermal dysplasias. These conditions affect the development of structures that come from the outer layer of the embryo (the ectoderm), including hair, nails, teeth, and sweat glands. The Halal type is a specific form of hidrotic ectodermal dysplasia, meaning that sweat gland function is generally preserved (people can still sweat), which distinguishes it from other forms of ectodermal dysplasia where sweating is absent or reduced. People with this condition typicall
How is Hidrotic ectodermal dysplasia, Halal type inherited?
Hidrotic ectodermal dysplasia, Halal type follows a autosomal dominant inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Hidrotic ectodermal dysplasia, Halal type typically begin?
Typical onset of Hidrotic ectodermal dysplasia, Halal type is childhood. Age of onset can vary across affected individuals.