Mondo Description Hyperphenylalaninemia (HPA) due to tetrahydrobiopterin (BH4) deficiency, also known as malignant HPA is an amino acid disorder with neonatal onset that is clinically characterized by the classic manifestations of phenylketonuria (PKA) and that later on is clinically differentiated by neurologic symptoms such as microcephaly, intellectual disability, central hypotonia, delayed motor development, peripheral spasticity and seizures, that develop and persist despite an established metabolic control of plasma phenylalanine.
Mondo Term and Equivalent IDs
MONDO:0016543: hyperphenylalaninemia due to tetrahydrobiopterin deficiency
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Counts of Target Development Levels for diseases known to be associated with this disease. If the disease has a valid DOID, targets known to be associated with all child diseases are aggregated. Click "Explore Associated Targets" to view more facets and details for the target list.
This disease has been annotated by GARD as a rare disease.
Description from Mondo Disease Ontology.
DataSources which have contributed target associations to this disease, and the identifiers by which the disease is referenced.
DC:0000202
GARD:0007751
Orphanet:238583
SCTID:68528007
UMLS:C0751435
MONDO:0016543
High level summary of knowledge for a disease, including descriptions and datasource references.