Pediatric Gastroenterology Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
Alagille syndrome
A genetic disorder affecting the liver, heart, and other organs, characterized by bile duct paucity.
GERD
Gastroesophageal reflux disease; chronic acid reflux causing symptoms and complications in pediatric patients.
growth velocity
Rate of linear growth measured over a specific time period, crucial for assessing pediatric health.
HAEC
Hirschsprung-associated enterocolitis, a life-threatening inflammatory complication requiring immediate intervention.
hepatoblastoma
The most common primary liver tumor in children, typically occurring in infants and young children.
hepatoportoenterostomy
Surgical connection of the liver to the small intestine to restore bile drainage.
Hirschsprung disease
Congenital absence of nerve cells in parts of the intestine, causing severe constipation in infants and children.
Hirschsprung-associated enterocolitis
A serious inflammatory complication of Hirschsprung disease involving the colon and small intestine.
hyperalimentation
Intravenous nutritional support providing complete nutrition through central venous access.
IBD
Inflammatory bowel disease; chronic inflammatory conditions of the digestive tract including Crohn's disease and ulcerat...
IFALD
Liver dysfunction caused by prolonged intravenous nutrition in infants.
intestinal adaptation
Natural process by which remaining small bowel compensates for lost intestinal length and function.
intestinal failure-associated liver disease
Progressive liver dysfunction occurring in patients with prolonged dependence on parenteral nutrition.
intussusception
Telescoping of one portion of intestine into an adjacent section, causing obstruction and requiring urgent intervention.
IPAA
Surgical procedure creating a pouch from the ileum and connecting it to the anus after colectomy.
jejunal atresia
A congenital obstruction of the jejunum resulting from intrauterine vascular accidents causing segmental intestinal loss...
jejunostomy
Surgical creation of an opening between the jejunum and abdominal wall for feeding access in pediatric patients.
Kasai procedure
A surgical procedure creating a portoenterostomy to establish bile drainage in infants with biliary atresia.
Ladd procedure
Surgical correction of intestinal malrotation involving division of adhesive bands and repositioning of the bowel.
malrotation
Congenital abnormal rotation of the intestines during fetal development, predisposing to volvulus and obstruction.
Meckel diverticulum
Most common congenital abnormality of the small intestine, representing a remnant of the omphalomesenteric duct.
meconium ileus
Intestinal obstruction in newborns caused by abnormally thick meconium, often associated with cystic fibrosis.
mesenteric lymphadenopathy
Enlargement of lymph nodes within the mesentery, often mimicking appendicitis.
minimal access surgery
Surgical approach using small incisions and specialized instruments, including laparoscopic and robotic techniques.
MRCP
Non-invasive imaging technique used to visualize the biliary and pancreatic ductal systems.