Anomalies of the GI Tract
Diagnostic Evaluation: Prenatal ultrasound
The circumferential muscle of the pyloric sphincter becomes thickened, resulting in elongation and narrowing of the pyloric canal. Clinical Manifestation: projectile vomiting
Esophageal Atresia with Tracheoesophageal Fistula
A failure of the esophagus to develop as a continuous passage and a failure of the trachea and esophagus to separate into distinct structures. Clinical Manifestation: excessive oral and pharyngeal mucous
Malrotation and Volvulus
Abnormal rotation of the intestine around the superior mesenteric artery during embryologic development. Clinical Manifestation: s&sx of bowel obstruction
A proximal segment of the bowel telescopes into a more distal segment, pulling the mesentery with it. Clinical Manifestations: severe paroxysmal abd pain & currant jelly stools
Bowel exposed outside of abdominal yet still covered by a membrane.
Bowel herniate through a defect in the abdominal wall and doesn't have a membrane covering the bowel
Mechanical obstruction from inadequate motility of part of the intestine thanks to the absence of enteric ganglion cells
No anus. Clinical Manifestations: anal stenosis (anus too small), anal membrane, anal agenesis (not a true anus), or rectal atresia.
Inflammation of the vermiform appendix. Clinical Manifestations: colicky peri-umbilical pain at 1st then shifts to RLQ (McBurney's point) & rebound tenderness