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|
|30%-79% of people have these symptoms|
|Abnormality of the cerebral vasculature||
Abnormality of the cerebral blood vessels
Mental retardation, nonspecific
Mental-retardation[ more ]
|Percent of people who have these symptoms is not available through HPO|
|Carotid artery occlusion||
Obstructed carotid artery
Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.
Conditions with similar signs and symptoms from Orphanet
MMD may develop in an isolated manner but can also be associated with other diseases when it is known as MMS: typical angiographic MMDfeatures associated with other diseases, e.g. sickle cell anemia, Down syndrome, neurofibromatosis type 1 (see these terms) and many others.
Visit the Orphanet disease page for more information.
Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.
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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I was born lifeless in a home, not a hospital. I was born feet first. I have lasting brain damage. I also have moyamoya disease. Was this caused by my birth? No one else in my family has moyamoya disease. See answer
My daughter was diagnosed with Moyamoya. She is a 37 year old white female. She had a stroke caused by the Moyamoya. They sent her home with a discharge paper that just said Moyamoya disease, expressive aphasia. None of her doctors will call me back. I need to know her prognosis. Is there ever a case of Moyamoya where you do not need the operation? See answer