• Safia Fatima, Muhammad Aamir, and Afshan Bibi.
• Department of Chemical Pathology and Endocrinology, Armed Forces Institute of Pathology, Rawalpindi, Pakistan.
• J Coll Physicians Surg Pak. 2021 Jan 1; 31 (1): 95-97.

AbstractMultiple carboxylase deficiency organic Acidemia is a rare inherited metabolic disorder. It is autosomal recessive disorder of two types: Holocarboxylase deficiency and Biotinidase deficiency. It is the metabolic disorder resulting from deficiency of biotin as a co-enzyme or reduced activity of biotin-dependent carboxylases (propionyl CoA carboxylase, and 3-methylcrotonyl CoA carboxylase and pyruvate carboxylase). A case of two months' female child is reported, who presented with recurrent infantile seizures and skin rash since birth; and biochemically with metabolic acidosis, hyper-ammonemia (on and off) since birth with multiple hospitalization. She had past history of jaundice. One sibling's death at 2nd day of life due to similar complaints. Initial presentation of raised ammonia and lactate levels were the first indication to this organic academia, which was later proven by increased peak levels of various organic acids on urine organic acid analysis by gas chromatography-mass spectrometry. Key Words: Multiple carboxylase deficiency, Holocarboxylase synthetase deficiency, Biotinidase deficiency.

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