This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
"Upside down" stomach on Barium meal study is seen in 
Select and explain. 
A. Organoaxial gastric volvulus, B. Large Gastric adenocarcinoma at antral end, C. Rolling type of hiatus hernia, D. Mesenteroaxial gastric volvulus
D: Mesenteroaxial gastric volvulus
Answer: D: Mesenteroaxial gastric volvulus 
Explanation: "Upside down" stomach on Ba meal study is seen in Mesenteroaxial gastric volvulus. Barium swallow study showing the upside-down appearance of the stomach in the thorax with the subdiaphragmatic location of the gastroesophageal junction before surgery (a) and normal subdiaphragmatic position of the stomach one month after the surgery (b). ref - <a href=" <p>