This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Mallory weiss syndrome is paial thickness rupture occurs at - 
Select and explain. 
A. Gastric cardia, B. Oesophagus mucosa, C. Gastro oesophageal junction, D. Gastroduodenal junction
A: Gastric cardia
Answer: A: Gastric cardia 
Explanation: Ans. is 'a' i.e., Gastric Cardia In Mallory-Weiss syndrome the majority (75-90%) of tear is located below the gastroesophageal junction, entirely within the gastric cardia.Only a few of the tears involve the gastro-esophageal junction.