Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome

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Overview

Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome is an extremely rare condition that combines three distinct medical problems in one person. The first component is multiple sclerosis (MS), a disease where the body's immune system attacks the protective covering of nerves in the brain and spinal cord, leading to problems with movement, balance, vision, and sensation. The second component is ichthyosis, a skin condition that causes dry, thick, scaly skin that can look like fish scales. The third component is factor VIII deficiency, also known as hemophilia A, which is a bleeding disorder where the blood does not clot properly because it lacks enough of a protein called factor VIII. This syndrome was described in a very small number of families, and the combination of these three features appearing together suggests a possible shared genetic cause, though the exact underlying mechanism is not fully understood. Patients may experience a wide range of symptoms depending on which component is most active at any given time. Neurological symptoms from the MS component can include numbness, tingling, muscle weakness, and difficulty walking. The ichthyosis causes ongoing skin dryness and scaling that requires daily skin care. The bleeding disorder can lead to prolonged bleeding after injuries or surgery, easy bruising, and in severe cases, spontaneous bleeding into joints or muscles. Treatment is currently focused on managing each component separately. There is no single cure for this syndrome. MS is treated with disease-modifying therapies, ichthyosis with moisturizers and skin care, and factor VIII deficiency with clotting factor replacement therapy.

Key symptoms:

Dry, thick, scaly skinNumbness or tingling in arms and legsMuscle weaknessDifficulty walking or balance problemsVision problems such as blurred or double visionProlonged bleeding after cuts or injuriesEasy bruisingFatigueJoint pain or swelling from bleeding into jointsMuscle stiffness or spasmsBladder or bowel control problemsSkin that cracks or peelsExcessive bleeding after dental work or surgery

Clinical phenotype terms (12)— hover any for plain English
Abnormal leukocyte morphologyHP:0001881Retrobulbar optic neuritisHP:0100654
Inheritance

X-linked recessive

Carried on the X chromosome; typically affects males more than females

Age of Onset

Variable

Can begin at different ages, from infancy through adulthood

Orphanet ↗NORD ↗

Treatments

No FDA-approved treatments are currently listed for Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome.

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No actively recruiting trials found for Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome at this time.

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Search ClinicalTrials.gov ↗Join the Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome community →

No specialists are currently listed for Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome.

View NORD Rare Disease Centers ↗Undiagnosed Disease Network ↗

Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

Travel Grants

No travel grants are currently matched to Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome.

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Community

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Latest news about Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome

3 articles
AdvocacyRSSApr 22, 2026
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A patient with MS shares their personal experience of why starting treatment quickly with the most powerful available medications is worth it to them. They beli
Clinical trialRSSApr 22, 2026
How an EBV Vaccine Could Be a Major MS Disrupter
Scientists are testing a new vaccine against Epstein-Barr virus (EBV), a common virus that may trigger multiple sclerosis (MS). Early research suggests that pre
NewsUNITERAREApr 3, 2026
Fund Update: PAN Foundation — Multiple sclerosis Fund Multiple sclerosis fund is currently closed
The PAN Foundation's Multiple Sclerosis Fund, which helped patients pay for MS medications and treatments, is currently closed and not accepting new application
See all news about Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome

Caregiver Resources

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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.How severe is each component of the syndrome in my case, and which needs the most urgent attention?,What disease-modifying therapy do you recommend for the MS component, and what are the side effects?,What type of factor VIII replacement schedule is best — on-demand or preventive?,Are there any activities or medications I should avoid because of the bleeding disorder?,Should my family members be tested for this condition?,How often should I have MRI scans and blood tests to monitor my condition?,Can you help coordinate my care across the different specialists I need to see?

Common questions about Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome

What is Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome?

Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome is an extremely rare condition that combines three distinct medical problems in one person. The first component is multiple sclerosis (MS), a disease where the body's immune system attacks the protective covering of nerves in the brain and spinal cord, leading to problems with movement, balance, vision, and sensation. The second component is ichthyosis, a skin condition that causes dry, thick, scaly skin that can look like fish scales. The third component is factor VIII deficiency, also known as hemophilia A, which is a bleeding dis

How is Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome inherited?

Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome follows a x-linked recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.