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In some people, serious, life-threatening complications may occur in infancy; in others, only minor complications may occur and intelligence is unaffected. Order publications from the NINDS Catalog. Axenfeld-Rieger is a collection of abnormalities affecting the front of the eye including the iris (colored part of the eye) and cornea (abnormally small corneas called microcornea), which is the transparent membrane that covers the eyes. Suite 310 A similar term, variable expressivity, describes when affected individuals have widely varying signs and symptoms. With ACC, thinking problems dont worsen, and early intervention and therapy can help physical, speech, and social delays. National Institute of Neurological Disorders and Stroke. Schizencephaly is a rare cortical malformation that manifests as a grey matter lined cleft extending from the ependyma to the pia mater. A Podcast For The Rare Disease Community, Rare Disease Cures Accelerator (RDCA-DAP), Policy Statements & Letters to Policymakers, Stay Informed With NORDs Email Newsletter, Launching Registries & Natural History Studies, https://rarediseases.org/living-with-a-rare-disease/find-clinical-trials/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282239/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5328961/, https://www.ncbi.nlm.nih.gov/pubmed/28254515, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4728690/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4351667/, https://www.nature.com/articles/gim2014210, https://www.ncbi.nlm.nih.gov/pubmed/23225343, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3459649/, https://www.ncbi.nlm.nih.gov/pubmed/22868088, https://www.ncbi.nlm.nih.gov/pubmed/22574627, https://www.ncbi.nlm.nih.gov/pubmed/20558831, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2881859/, https://www.ncbi.nlm.nih.gov/pubmed/26610912, https://www.ncbi.nlm.nih.gov/books/NBK7046/, https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets/Cephalic-Disorders-Fact-Sheet, https://rarediseases.org/patient-assistance-programs/medicalert-assistance-program/, https://rarediseases.org/patient-assistance-programs/rare-disease-educational-support/, https://rarediseases.org/patient-assistance-programs/caregiver-respite/, Learn more about Patient Assistance Programs >, Arginine: Glycine Amidinotransferase Deficiency, https://rarediseases.org/non-member-patient/epilepsy-foundation/, Gould Syndrome Foundation (COL4a1/COL4A2), https://rarediseases.org/non-member-patient/gould-syndrome-foundation-col4a1-col4a2/, https://rarediseases.org/non-member-patient/national-kidney-foundation/, https://rarediseases.org/non-member-patient/nih-national-eye-institute/, NIH/National Institute of Neurological Disorders and Stroke, Aromatic L-Amino Acid Decarboxylase Deficiency, https://rarediseases.org/non-member-patient/nih-national-institute-of-neurological-disorders-and-stroke/, https://rarediseases.org/non-member-patient/the-arc/, Learn more about Patient Organization & Membership >, HANAC: hereditary angiopathy, nephropathy and cramps syndrome (OMIM #611773), POREN1: autosomal dominant type 1 porencephaly; porencephaly with infantile hemiplegia (OMIM #175780, RATOR: retinal arterial tortuosity (OMIM #180000), BSVD: brain small vessel disease with or without ocular anomalies (OMIM #607595), ICH: susceptibility to intracerebral hemorrhage (OMIM #614519). NORD and MedicAlert Foundation have teamed up on a new program to provide protection to rare disease patients in emergency situations. Symptoms that may occur in individuals with autosomal dominant type I porencephaly include migraines, weakness or paralysis of one side of the body (hemiparesis or hemiplegia), seizures, stroke, and dystonia, a group of neurological disorders characterized by involuntary muscle contractions that force the body into abnormal, sometimes painful, movements and positions. Your organization or institution (if applicable), e.g. The malformation is additionally associated with mental retardation and, in case of severe forms of schizencephaly located in the frontal lobe or in the lateral sulcus region, with varied forms of characteropathy. Schizencephaly At the time the article was created Frank Gaillard had no recorded disclosures. It may be as uncommon as 1:20,000 according to autopsy series 6 .