Related Experiment Video
Updated: Dec 12, 2025

A Mouse Model of Intestinal Partial Obstruction
Published on: March 5, 2018
Pyloric Mucosal Diaphragm Associated with Hypertrophic Pyloric Stenosis: An Unusual Combination in a Male Neonate
Eugenie Chariot1, Anna Poupalou1, Julie Estievenart2
1Department of Pediatric Surgery, Université Libre de Bruxelles (ULB), HUDERF Hospital (Hôpital Universitaire des Enfants Reine Fabiola), Brussels, Belgium.
Abstract:
We describe herein the case of a 3-week-old baby with persistent nonbilious vomiting, due to a hypertrophic pyloric stenosis (HPS) associated with a congenital pyloric mucosal diaphragm. So far, an association between the two conditions has not been described. The diagnosis of a pyloric mucosal diaphragm was delayed because of its cooccurrence with HPS.
Related Concept Videos
Pathophysiology of Peptic Ulcer Disease: Mucosal Defense Factors
Peptic Ulcer Disease I: Introduction
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
Mucosal Barrier of the Stomach
Within parietal cells, carbonic acid is first formed through the reaction of water and carbon dioxide. The dissociation of carbonic acid releases bicarbonate and hydrogen ions. The bicarbonate...
Peptic Ulcer Disease V: Surgical Management and Nursing Care
Surgical Interventions for Peptic Ulcer Disease
Pathophysiology of Peptic Ulcer Disease: Injurious Factors
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
Peptic Ulcer Disease II: Pathophysiology
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.

