Hypoinsulinemic Hypoglycemia with Hemihypertrophy, also known as hypoinsulinemic hypoglycemia and body hemihypertrophy, is related to autosomal dominant intellectual developmental disorder 19 and congenital lipomatous overgrowth, vascular malformations, and epidermal nevi. An important gene associated with Hypoinsulinemic Hypoglycemia with Hemihypertrophy is AKT2 (AKT Serine/Threonine Kinase 2), and among its related pathways/superpathways are Notch Signaling Pathways and TGF-beta Signaling Pathways. Related phenotypes are hemihypertrophy and gynecomastia