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Up to: Inherited lipid metabolism disorder · Genetic developmental and epileptic encephalopathy · Disorder of GPI anchor biosynthesis
Developmental and epileptic encephalopathy, 55
A developmental and epileptic encephalopathy characterized by onset in the first weeks or months of life of refractory seizures, profoundly impaired intellectual development, absent speech, spastic quadriplegia, and dyskinetic movements that has material basis in homozygous or compound heterozygous mutation in the PIGP gene on chromosome 21q22.
This condition has no sub-types.