MediAI

Introduction: The Clinical Dilemma of Substernal Fullness In emergency medicine and gastroenterology, acute postprandial epigastric pain combined with a history of progressive dyspnea presents a challenging diagnostic puzzle. While cardiopulmonary etiologies must always be ruled out immediately, structural diaphragmatic defects can mimic these exact presentations. Among these, a large paraesophageal hernia (Type II hiatal hernia) stands out as a critical, potentially life-threatening structural abnormality that demands precise radiology interpretation and swift clinical action. Consider a typical clinical scenario: a 34-year-old female presents to the emergency department complaining of severe, acute epigastric pain immediately following dinner. For the past nine months, she has experienced mild but progressive postprandial dyspnea and substernal fullness, frequently written off as routine gastroesophageal reflux disease (GERD) or stress-induced dyspepsia. On physical examinat...