ABSTRACT
Citrullinemia type 1 was diagnosed by tandem mass spectrometry in a full term male neonate who presented with an acute catastrophic collapse on the 3rd day of life. Both parents were identified to be carriers for the exon 15 p Gly390Arg mutation in the argininosuccinate synthetase gene located at chromosome 9q34.1. Chorionic villus sampling and prenatal genetic testing in the subsequent pregnancy revealed an affected fetus resulting in termination of pregnancy.
ABSTRACT
Biotinidase deficiency is a rare metabolic disorder which can cause dermatological manifestations and lead to severe neurological sequelae if untreated. Holocarboxylase synthetase deficiency also has similar manifestations and needs to be differentiated. We present a neonate who had atypical early onset symptoms and was diagnosed to have biotinidase deficiency.
Subject(s)
Alopecia/etiology , Biotinidase Deficiency/complications , Biotinidase Deficiency/diagnosis , Biotinidase Deficiency/genetics , Fatal Outcome , Female , Humans , Ichthyosis/etiology , Infant, Newborn , Seizures/etiologyABSTRACT
Triple X syndrome is a rare numerical chromosomal anomaly, occurring as a result of non dysjunction in meiosis I. Most cases have neurodevelopmental defects and functional problems. We report two cases diagnosed in our centre. The first was a fetus with cleft lip and palate, 47, XXX was identified by Fetal Blood Sampling. The second was a child with multisystem anomaly including cleft lip and palate, whose karyotype also revealed 47, XXX. Though isolated cases of associated abnormalities have been reported there have not been consistent phenotypic changes reported with this condition.