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A rare genetic cerebral malformation characterised by the presence of cortical smoothening with loss of secondary and tertiary gyri, associated with an excessive number of small, irregular gyri with increased cortical thickness, located in the occipital lobes. Patients usually present with seizures (including myoclonic-astatic, absence, atypical absence, vision loss, myoclonic-atonic, generalised tonic-clonic) and variable (absent to moderate) developmental and/or intellectual delay. There is evidence the disease is caused by homozygous or compound heterozygous mutations in the LAMC3 gene on chromosome 9q34.
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A rare genetic cerebral malformation characterized by the presence of cortical smoothening with loss of secondary and tertiary gyri, associated with an excessive number of small, irregular gyri with increased cortical thickness, located in the occipital lobes. Patients usually present with seizures (including myoclonic-astatic, absence, atypical absence, vision loss, myoclonic-atonic, generalized tonic-clonic) and variable (absent to moderate) developmental and/or intellectual delay. There is evidence the disease is caused by homozygous or compound heterozygous mutations in the LAMC3 gene on chromosome 9q34.
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