Bilateral frontoparietal polymicrogyria (BFPP) is a sub-type of polymicrogyria (PMG; see this term) a cerebral cortical malformation characterized by excessive cortical folding and abnormal cortical layering that involves the frontoparietal region of the brain and that presents with hypotonia developmental delay moderate to severe intellectual disability pyramidal signs epileptic seizures non progressive cerebellar ataxia dysconjugate gaze and/or strabismus.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
Newly diagnosed with
Bilateral frontoparietal polymicrogyria?
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Advocacy Organizations
GRI-UK
Our mission is to raise awareness of GRI gene disorders, to advocate for research, to support and empower affected individuals and families, and to build a community where everyone feels welcome and valued.
Genetic Epilepsy Team Australia
Collaboration of research and care
PPP2CA Pathways
PPP2CA Pathways connects families, shares strength, and supports the research community in the search for answers to Houge-Janssens Syndrome type 3.
Rare Epilepsy Network (REN)
Improving outcomes of people with rare epilepsies through an innovative collaborative infrastructure that drives urgent, patient-centered research, educaiton and advocacy.
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Clinical Trials
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