| A rare, genetic, inborn error of metabolism disorder characterized by global developmental delay, hypotonia, choreoathetosis, hypo-/alacrimia, and liver dysfunction which manifests with elevated liver transaminases and hepatocyte cytoplasmic storage material or vacuolization on liver biopsy. Additional features reported include acquired microcephaly, hypo-/areflexia, seizures, peripheral neuropathy, intellectual and language/speech disability, additional ocular anomalies and EEG and brain imaging abnormalities. |