Gastrointestinal System
Malabsorption dynamics, infectious alimentary enteritis, and structural gut variations.
2 subcategories • 10 reference files
Acute Alimentary Infections & Inflammations (5)
Rotavirus Gastroenteritis
Acute Viral Enterotoxin-Mediated Intestinal Infection
Infants and toddlers aged 3 to 24 months (Highly contagious)
Pediatric Appendicitis
Acute Obstruction & Inflammation of the Vermiform Appendix
School-aged children and adolescents (Peak incidence: 10 to 19 years; rare under 2 years)
Intussusception
Acute Bowel Invagination and Obstruction
3 Months to 3 Years (Peak: 5 to 9 Months)
Pediatric Dehydration
Acute Fluid and Electrolyte Depletion
Infants and Young Children (High risk)
Acute Gastroenteritis (Stomach Flu)
Acute infection of the stomach and intestines causing diarrhea and vomiting.
All ages; dehydration risk is highest in infants and toddlers.
Chronic Autoimmune & Structural Gastrointestinal Disorders (5)
Celiac Disease (Gluten-Sensitive Enteropathy)
Autoimmune Small Intestine Malabsorptive Enteropathy
Infants transitioning to solid foods (typically 9 to 24 months) through adolescence.
Hirschsprung Disease (Congenital Megacolon)
Congenital Intestinal Aganglionosis Motor Obstruction
Neonates (Typically diagnosed in the first few days of life; occasionally in older infants)
Pediatric Inguinal Hernia
Congenital Structural Inguinal Defect
Infancy to Childhood (More common in males and premature infants)
Functional Constipation
Common functional disorder of infrequent or painful, hard bowel movements without an underlying disease.
All ages; peaks at toilet training, starting solids, and school entry.
Gastroesophageal Reflux (Infant GER/GERD)
Backflow of stomach contents into the esophagus; common and usually benign in infants.
Infants, peaking around 4 months; most outgrow it by 12–18 months.