Background Neonatal diabetes mellitus is a rare form of monogenic diabetes which is diagnosed in the first six months of life. It is often related to genetic mutations; hence, genetic testing is warranted. Here, we present six cases of pancreatic agenesis resulting in neonatal diabetes with PTF1A gene mutation. Methodology This retrospective case series study included six pediatric cases of neonatal diabetes mellitus who are currently following at pediatric endocrinology clinics at King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia. Results The study reported six patients with a mean age of eight years who presented with pancreatic agenesis resulting in neonatal diabetes with PTF1A gene mutation. In four patients, there was no evidence of cerebellar agenesis. Conclusions Neonatal diabetes is a challenging disease that must be diagnosed early to prevent subsequent metabolic complications. Genetic testing is recommended in neonates who present with prolonged duration of hyperglycemia. Insulin replacement is the treatment of choice.
Keywords: monogenic diabetes; neonatal diabetes; pancreatic agenesis; ptf1a mutation; saudi arabia.
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