29 topics with concise summaries: definitions, key facts, and classroom questions.
This chapter covers the entire spectrum of pediatric gastroenterology: from oral embryogenesis features to complex organic and functional gastrointestinal disorders.
The section is structurally divided into pathologies of the upper and lower GI tract (GERD, gastritis, peptic ulcer disease, celiac disease, IBD — Crohn's disease and ulcerative colitis), hepatobiliary system diseases (biliary tract dysfunctions, cholecystitis, cholelithiasis, chronic and autoimmune hepatitis, cirrhosis), and pancreatitis. Special attention is paid to the group of functional disorders: dyspepsia, irritable bowel syndrome, and constipation.
During practical classes and exams, the highest scrutiny is applied to the differential diagnosis between functional and organic bowel disorders, the principles of diet therapy in celiac disease, as well as the pathogenesis of liver fibrosis and the management of children with hepatitis C. I recommend starting your study by thoroughly mastering the criteria for functional disorders and the specific features of inflammatory bowel diseases in childhood.
What to do when presenting with a clinical picture of AIH if standard autoantibodies are absent?
In seronegative AIH, the diagnostic workup is expanded: testing is performed for antibodies to soluble liver antigen (anti-SLA), liver cytosol antigen type 1 (anti-LC1), and pANCA.
In which cases is a biopsy mandatory during endoscopy?
Histological examination is indicated when radiography and endoscopy data are discrepant, in atypical esophagitis, suspected metaplasia (Barrett's esophagus), detection of papillomatosis, or suspected malignant transformation.
Does acute gastritis always end in complete recovery?
In most cases, yes. However, if the inflammation is caused by the bacterium Helicobacter pylori, the process naturally transitions into a chronic form.
What is the "cobblestone" appearance on endoscopy?
This is a specific sign of type B gastritis (Helicobacter pylori-associated). Multiple whitish elevations appear against a background of hyperemia on the mucosa of the antrum.
Does the child's age affect the incidence of complications?
No, the incidence of complicated forms is evenly distributed across all age groups and accounts for about 7–10% of all cases.
Can a diagnosis be made based on a blood test alone?
No, serology is a screening method. Definitive confirmation in most cases requires endoscopy with small intestinal mucosal biopsy.
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