Overview
Leukonychia totalis-acanthosis nigricans-like lesions-abnormal hair syndrome is an extremely rare genetic skin condition. The name describes its main features: leukonychia totalis means all of the fingernails and toenails are completely white rather than their normal pink color; acanthosis nigricans-like lesions are dark, thickened, velvety patches of skin that typically appear in body folds such as the neck, armpits, and groin; and abnormal hair refers to changes in hair texture, growth, or appearance. This combination of nail, skin, and hair abnormalities reflects a disorder of the ectodermal tissues — the outer layers of the body that give rise to skin, nails, and hair during development. Because this syndrome is so rare, only a handful of cases have been described in the medical literature. The exact underlying cause is not yet fully understood, though it is believed to be genetic in origin. There is currently no cure for this condition. Treatment is focused on managing symptoms and may include skin care for the darkened patches, monitoring nail health, and addressing any hair-related concerns. Patients are typically followed by dermatologists and clinical geneticists. The condition does not appear to be life-threatening, but the visible skin, nail, and hair changes can have a significant impact on a person's self-image and quality of life.
Key symptoms:
Completely white fingernails and toenailsDark, thickened patches of skin in body foldsVelvety skin texture in affected areasAbnormal hair texture or growthSkin darkening on the neck, armpits, or groinBrittle or unusually shaped nailsSparse or thin hairRough or dry skin patches
Autosomal recessive
Passed on when both parents carry the same gene change; often skips generations
Childhood
Begins in childhood, roughly ages 1 to 12
Treatments
No FDA-approved treatments are currently listed for Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome.
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Specialists
View all specialists →No specialists are currently listed for Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome.
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 Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
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 is the exact diagnosis, and how certain are you about it?,Are there any genetic tests that could help identify the cause?,What treatments can help improve the appearance of my skin, nails, or hair?,Is this condition likely to get worse over time?,Should other family members be examined or tested?,Are there any complications I should watch for?,Can you recommend a counselor or support group for coping with visible skin differences?
Common questions about Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome
What is Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome?
Leukonychia totalis-acanthosis nigricans-like lesions-abnormal hair syndrome is an extremely rare genetic skin condition. The name describes its main features: leukonychia totalis means all of the fingernails and toenails are completely white rather than their normal pink color; acanthosis nigricans-like lesions are dark, thickened, velvety patches of skin that typically appear in body folds such as the neck, armpits, and groin; and abnormal hair refers to changes in hair texture, growth, or appearance. This combination of nail, skin, and hair abnormalities reflects a disorder of the ectoderma
How is Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome inherited?
Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome typically begin?
Typical onset of Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome is childhood. Age of onset can vary across affected individuals.