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Title: Clinical and laboratory barriers to the timely diagnosis of sulphite oxidase deficiency
Authors: Choong, C.T.
Hart, C.
Tan, E.S.
Goh, D.L.M. 
Keywords: Encephalopathy
Molybdenum cofactor
Urinary sulphocysteine
Issue Date: 2010
Abstract: Isolated sulphite oxidase deficiency (SOD) is a rare genetic neurometabolic disorder characterised by intractable seizures and progressive severe neurological dysfunction. Affected children commonly present at or soon after birth with seizures and neurological deficits. In the newborn period, diagnosis may be missed as clinical features may mimic perinatal hypoxia-ischaemia, a more common entity. We report an infant with SOD whose clinical presentation of seizures and lethargy on the 4th day of life had suggested hypoxic-ischaemic encephalopathy, and discuss the challenges in the diagnostic process. The infant's progressive severe neurological deterioration suggested a metabolic disorder. His brain magnetic resonance imaging at 10 weeks showed severe cerebral atrophy and cystic changes. Biochemical findings of a very low plasma cystine concentration (
Source Title: Proceedings of Singapore Healthcare
ISSN: 20101058
Appears in Collections:Staff Publications

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