Donohue syndrome in an Egyptian infant: a case report

Abstract Objectives We aim to report a case of Donohue syndrome (DS) which is a rare genetically encoded, autosomal inherited recessive disorder linked with severe insulin-resistant diabetes. Case presentation We hereby report a case of a 4 month -old girl infant with DS. The patient exhibited dysmorphic facial features, severe growth retardation, fasting hypoglycemia, postprandial hyperglycemia, and hyperinsulinemia which are the hallmarks of DS. The diagnosis of DS was confirmed by genetic analysis. The patient was treated with high-dose insulin and frequent nasogastric formula milk feeding to achieve reasonable glycemic control. Conclusions We reported a typical case of DS in a 4-month-old female infant characterized by peculiar dysmorphic features and failure to thrive. She also fulfilled the biochemical criteria of fasting hypoglycemia, postprandial hyperglycemia, and severe hyperinsulinemia. The diagnosis was confirmed by a molecular genetic study. Our patient achieved reasonable glycemic control after treatment with high-dose insulin.