A Neonate With Diabetes Mellitus, Congenital Hypothyroidism, and Congenital Glaucoma

Neonatal diabetes mellitus (NDM) is a rare condition with more than 20 monogenic genes associated with it. GLIS3 gene-encoded GLI similar protein 3, as a transcription factor, is involved in the development of the pancreas, liver, kidneys, eye, and thyroid. We report a preterm female neonate with coarse facial features and hyperglycemia, later diagnosed with neonatal diabetes mellitus, congenital hypothyroidism (CH), congenital glaucoma (CG), and renal cysts, secondary to GLIS3 gene mutation. It is a rare genetic disorder involving multiple organ systems with progressive development of symptoms requiring long-term surveillance and management.