This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.
|Medical Terms||Other Names||
|80%-99% of people have these symptoms|
|Abnormal corpus striatum morphology||0010994|
|Cerebral cortical atrophy||
Decrease in size of the outer layer of the brain due to loss of brain cells
|Infantile sensorineural hearing impairment||0008610|
|Intrauterine growth retardation||
Prenatal growth deficiency
Prenatal growth retardation[ more ]
|Postnatal growth retardation||
Growth delay as children
|30%-79% of people have these symptoms|
|Abnormal cerebral artery morphology||
Abnormality of cerebral artery
Abnormality of the cerebral arteries[ more ]
|Abnormal dura mater morphology||0010652|
|Abnormal internal carotid artery morphology||3000062|
|Abnormality of fontanelles||0011328|
|Antenatal intracerebral hemorrhage||0007023|
|Atrophic pituitary gland||0410279|
|Dilatation of the ventricular cavity||0006698|
|Dysgenesis of the thalamus||0025099|
Abnormally close eyes
Closely spaced eyes[ more ]
|5%-29% of people have these symptoms|
|Optic nerve hypoplasia||0000609|
Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.
Living with a genetic or rare disease can impact the daily lives of patients and families. These resources can help families navigate various aspects of living with a rare disease.
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
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My 8 month old son has both microcephaly and hydranencephaly. Is there any treatment for hydranencephaly at this stage? See answer