title: Letter Nesidioblastosis in Beckwith syndrome.
mesh_terms: D000015:Abnormalities, Multiple; D007516:Adenoma, Islet Cell / Q000151:congenital*; D006554:Hernia, Umbilical / Q000151:congenital; D006801:Humans; D007231:Infant, Newborn; D010190:Pancreatic Neoplasms / Q000151:congenital*; D013577:Syndrome; D014059:Tongue / Q000002:abnormalities