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Early Development Events: Starts with cleavage, implantation, and formation of bilaminar and trilaminar discs.

Foregut Development: Forms the esophagus and stomach, with differentiation influenced by Hox genes.
Midgut Development: Involves umbilical herniation, rotation, and retraction, leading to jejunum and ileum formation.
Hindgut Development: Forms the distal colon and rectum, regulated by the urorectal septum.

Esophageal Anomalies: Includes atresia, stenosis, and hiatal hernia due to developmental failures.
Stomach Anomalies: Hypertrophic pyloric stenosis and gastric volvulus can occur due to genetic factors or abnormal development.
Duodenal Anomalies: Stenosis and atresia arise from incomplete recanalization, often with associated signs such as the "double bubble" on imaging.
Midgut Anomalies: Includes malrotation, volvulus, and anomalies affecting the cecum and appendix.
Hindgut Anomalies: Hirschsprung's disease (aganglionic megacolon), anorectal malformations, and anal stenosis.

Development precision is influenced by genetic signaling. Anomalies can occur if developmental control is perturbed.
Associated anomalies outside of the GI tract impact prognosis and management of GI anomalies.

Early diagnosis and management are vital for ensuring optimal outcomes in cases of GI developmental anomalies.