Overview
Hyperlipoproteinemia type 5 (also called Type V hyperlipoproteinemia, or familial mixed hypertriglyceridemia) is a condition where the blood contains very high levels of certain fats, specifically triglycerides and particles called chylomicrons and VLDL (very low-density lipoprotein). This buildup of fats in the blood is sometimes called hypertriglyceridemia. The condition is marked as 'obsolete' in some medical databases because it is now better understood as part of a broader group of fat metabolism disorders rather than a single distinct disease. When fat levels in the blood become extremely high, the body struggles to clear them properly. This can lead to serious problems including inflammation of the pancreas (pancreatitis), which causes severe abdominal pain. People may also develop yellowish fatty deposits under the skin called xanthomas, and may experience abdominal discomfort, nausea, and an enlarged liver or spleen. Treatment focuses on lowering triglyceride levels through a combination of a very low-fat diet, avoiding alcohol, and medications such as fibrates (like fenofibrate) or omega-3 fatty acids. Managing underlying conditions like diabetes or obesity is also a key part of care. With proper management, many people can reduce their risk of serious complications like pancreatitis.
Also known as:
Key symptoms:
Very high triglyceride (fat) levels in the bloodSevere abdominal pain due to pancreatitis (inflamed pancreas)Yellowish fatty bumps on the skin (eruptive xanthomas)Enlarged liver or spleenNausea and vomitingCreamy or milky appearance of blood when drawnFatigue and general feeling of being unwellAbdominal bloating or discomfortMemory or thinking problems in severe cases
Multifactorial
Caused by a mix of several genes and environmental factors
Adult
Begins in adulthood (age 18 or older)
Treatments
No FDA-approved treatments are currently listed for OBSOLETE: Hyperlipoproteinemia type 5.
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Specialists
View all specialists →No specialists are currently listed for OBSOLETE: Hyperlipoproteinemia type 5.
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 OBSOLETE: Hyperlipoproteinemia type 5.
Community
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Caregiver Resources
NORD Caregiver Resources
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Mental Health Support
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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 triglyceride level is my target, and how will we know if treatment is working?,Should I have genetic testing to understand if this runs in my family?,What specific foods and drinks should I completely avoid?,Which medication is best for me, and what are the side effects I should watch for?,What are the warning signs of pancreatitis, and when should I go to the emergency room?,How often do I need blood tests to monitor my fat levels?,Are there any clinical trials or newer treatments I should know about?
Common questions about OBSOLETE: Hyperlipoproteinemia type 5
What is OBSOLETE: Hyperlipoproteinemia type 5?
Hyperlipoproteinemia type 5 (also called Type V hyperlipoproteinemia, or familial mixed hypertriglyceridemia) is a condition where the blood contains very high levels of certain fats, specifically triglycerides and particles called chylomicrons and VLDL (very low-density lipoprotein). This buildup of fats in the blood is sometimes called hypertriglyceridemia. The condition is marked as 'obsolete' in some medical databases because it is now better understood as part of a broader group of fat metabolism disorders rather than a single distinct disease. When fat levels in the blood become extreme
How is OBSOLETE: Hyperlipoproteinemia type 5 inherited?
OBSOLETE: Hyperlipoproteinemia type 5 follows a multifactorial inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does OBSOLETE: Hyperlipoproteinemia type 5 typically begin?
Typical onset of OBSOLETE: Hyperlipoproteinemia type 5 is adult. Age of onset can vary across affected individuals.