Overview
Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome is an extremely rare genetic condition that affects multiple body systems. The hypothalamus is a small but critical part of the brain that controls many important functions, including hormone production, body temperature, hunger, thirst, and sleep. When the hypothalamus does not work properly (hypothalamic insufficiency), it can lead to hormonal imbalances and problems regulating basic body functions. In this syndrome, affected individuals also develop secondary microcephaly, meaning the head grows more slowly than expected after birth, resulting in a smaller-than-normal head size. This is often associated with developmental delays and intellectual disability. Vision problems (visual impairment) are another key feature, which can range from reduced visual sharpness to more significant sight loss. Additionally, individuals with this syndrome have abnormalities of the urinary system, which may include structural problems with the kidneys or urinary tract. Because this condition affects so many different body systems, patients typically need care from a team of specialists. Treatment is mainly supportive and focused on managing individual symptoms, as there is currently no cure. Hormone replacement therapy may be needed to address hypothalamic hormone deficiencies, and regular monitoring of growth, development, vision, and kidney function is essential.
Key symptoms:
Small head size that develops after birthHormonal imbalances due to hypothalamus not working properlyVision problems or vision lossKidney or urinary tract abnormalitiesDevelopmental delaysIntellectual disabilityPoor growth or short statureProblems with body temperature regulationFeeding difficulties in infancyDelayed milestones such as sitting, walking, or talkingPossible seizuresSleep disturbancesLow muscle tone
Autosomal recessive
Passed on when both parents carry the same gene change; often skips generations
Neonatal
Begins at or shortly after birth (first 4 weeks)
Treatments
No FDA-approved treatments are currently listed for Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome.
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Specialists
View all specialists →No specialists are currently listed for Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies 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 Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies 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
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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 specific hormones are affected, and will my child need hormone replacement therapy?,How often should my child have brain MRI scans and hormone level checks?,What type of vision impairment does my child have, and what can be done to help?,Are there any kidney or urinary tract problems that need treatment or surgery?,What early intervention therapies do you recommend for my child's development?,Should our family have genetic testing, and what does this mean for future pregnancies?,What emergency signs should I watch for, and what should I do if they occur?
Common questions about Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome
What is Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome?
Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome is an extremely rare genetic condition that affects multiple body systems. The hypothalamus is a small but critical part of the brain that controls many important functions, including hormone production, body temperature, hunger, thirst, and sleep. When the hypothalamus does not work properly (hypothalamic insufficiency), it can lead to hormonal imbalances and problems regulating basic body functions. In this syndrome, affected individuals also develop secondary microcephaly, meaning the head grows m
How is Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome inherited?
Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome typically begin?
Typical onset of Hypothalamic insufficiency-secondary microcephaly-visual impairment-urinary anomalies syndrome is neonatal. Age of onset can vary across affected individuals.