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The Human Phenotype Ontology (HPO) provides the following list of features that have been reported in people with this condition. Much of the information in the HPO comes from Orphanet, a European rare disease database. If available, the list includes a rough estimate of how common a feature is (its frequency). Frequencies are based on a specific study and may not be representative of all studies. You can use the MedlinePlus Medical Dictionary for definitions of the terms below.
| Signs and Symptoms | Approximate number of patients (when available) |
| Atypical absence seizures | - |
| Cognitive impairment | - |
| Delayed speech and language development | - |
| Dyslexia | - |
| Generalized tonic-clonic seizures | - |
| Polymicrogyria | - |
| Pseudobulbar paralysis | - |
| X-linked dominant inheritance | - |
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Nonprofit support and advocacy groups bring together patients, families, medical professionals, and researchers. These groups often raise awareness, provide support, and develop patient-centered information. Many are the driving force behind research for better treatments and possible cures. They can direct people to research, resources, and services. Many groups also have experts who serve as medical advisors. Visit their 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.
The following diseases are related to Bilateral perisylvian polymicrogyria. If you have a question about any of these diseases, you can contact GARD.
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What is bilateral frontoparietal polymicrogyria? What are its symptoms? How is it different from bilateral perisylvian polymicrogyria in how it presents and what symptoms we see? See answer
If a child is the only one affected with perisylvian syndrome in his family, can the inheritance of the syndrome be determined? Would perisylvian syndrome in a male child come from the mother or the father, or both? Is genetic testing for this syndrome available? See answer
