Q41.2

Clinical Causes: Genetic factors passed down through families Environmental influences during fetal development Intrauterine infections or exposures that disrupt intestinal formation Unknown factors; often idiopathic

Key Symptoms: Abdominal swelling or distension Vomiting, often bilious (green or yellowish), indicating intestinal blockage Failure to pass meconium (initial stool) Poor feeding and weight gain Dehydration and electrolyte imbalance Signs of intestinal obstruction such as cramping or discomfort

Diagnosis Path: Diagnosing congenital absence, atresia, or stenosis of the ileum typically involves a combination of clinical observations and diagnostic tests, including: - Physical examination revealing abdominal distension and visible bowel loops - Imaging studies like abdominal X-rays, which may show dilated bowel loops and absent gas in parts of the intestine - Contrast studies such as barium swallow or enema to visualize the location and extent of the blockage - Ultrasound and sometimes MRI tools to assess associated anomalies - Surgical exploration, which remains the definitive method for confirming the diagnosis and assessing the precise nature of the intestinal anomaly

Treatment Protocols: Treatment generally involves surgical intervention to correct the structural abnormalities: - Resection of the affected bowel segment followed by anastomosis (surgical connection) - In cases of extensive, non-salvageable bowel tissue, more complex reconstruction may be necessary - Postoperative support includes nutritional management, fluid and electrolyte correction, and infection prevention - Long-term follow-up care to monitor for complications like bowel function issues or growth delays - Supportive therapies, including nutritional supplementation and, in some cases, parenteral nutrition, until normal feeding is established and bowel function resumes