This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Esophagus Applied Anatomy: GERD, Subject name: Pathology
A 45-year-old man presents with long-standing heaburn and dyspepsia. An X-ray film of the chest shows a retrocardiac, gas-filled structure. This patient most likely has which of the following conditions? 
Select and explain. 
A. Boerhaave syndrome, B. Esophageal varices, C. Esophageal webs, D. Hiatal hernia
D: Hiatal hernia
Answer: D: Hiatal hernia 
Explanation: Hiatal hernia Separation of diaphragmatic crura & protrusion of stomach into thorax through resulting gap. Congenital hiatal hernias are recognized in infants and children, but many are acquired in later life. Symptoms when present resemble GERD Can cause LES incompetence.