Neuronal Intestinal Dysplasia, Type B, also known as neuronal intestinal dysplasia type b, is related to meckel diverticulum and hirschsprung disease 1. An important gene associated with Neuronal Intestinal Dysplasia, Type B is RET (Ret Proto-Oncogene), and among its related pathways/superpathways are Neuroscience and Mesenchymal Stem Cells and Lineage-specific Markers. Related phenotype is abnormality of metabolism/homeostasis.