Microcephaly-seizures-intellectual disability-heart disease syndrome

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A rare multiple congenital anomalies/dysmorphic syndrome characterized by microcephaly intellectual disability seizures and congenital heart defects (e.g. atrial/ventricular septal defect hypoplastic aortic arch with persistent ductus arteriosus). Additional manifestations include mild hypothyroidism skeletal abnormalities micropenis delayed psychomotor development dysmorphic facial features (including epicanthus depressed nasal bridge prominent antitragus) and pulmonary vascular occlusive disease. There have been no further descriptions in the literature since 1989.

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

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Microcephaly-seizures-intellectual disability-heart disease syndrome?

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Advocacy Organizations

PPP2CA Pathways

PPP2CA Pathways connects families, shares strength, and supports the research community in the search for answers to Houge-Janssens Syndrome type 3.

website Location: Global Global

RareDNA Foundation

Dedicated to improving outcomes for individuals and families affected by rare DNA heart mutations by advancing awareness, access and action. We increase awareness among medical professionals and the public, provide education and resources on diagnosis and treatment, support scientific research, and advocate for faster diagnostic pathways, giving families the knowledge and care they need.

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Clinical Trials

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