Diagnosis and Management of Morgagni Hernia

Clinical Presentation and Diagnostic Approach

Morgagni hernias present with both gastrointestinal and respiratory symptoms in symptomatic adults, though they have a lower incidence of bowel incarceration or strangulation compared to other diaphragmatic hernias 1
The World Journal of Emergency Surgery recommends starting with chest X-ray as the first diagnostic study in patients without trauma history presenting with respiratory symptoms, with a sensitivity of 2-60% 1, 2
Chest X-ray findings may include abnormal bowel gas pattern, air-fluid level 1

CT scan is the gold standard for diagnosis with sensitivity of 14-82% and specificity of 87% 3
Normal chest X-rays do NOT exclude diaphragmatic hernias, with false negatives occurring in 11-62% of cases, and if clinical suspicion persists, proceed directly to CT scan 2, 3

Immediate surgical intervention is indicated when bowel strangulation is suspected, signs of peritonitis or hemodynamic instability are present, or gastrointestinal obstruction develops 2, 4
Delayed diagnosis increases mortality risk, particularly when treatment is delayed more than 24 hours after symptom onset, and can cause bowel strangulation, perforation, severe peritonitis, sepsis, and multi-organ failure 4, 5