The Mousseau-Barbin (M.B.) Tube is a medical device specifically designed for palliative care in patients with advanced oesophageal cancer.
Therefore, its main application is for managing the consequences of advance cancer oesophagus.
Which of the following statements are correct regarding Barrett's oesophagus?
1. It is a metaplastic change.
2. It is a risk factor for development of adenocarcinoma.
3. Ingestion of NSAIDs is the aetiological factor for its development.
4. Endoscopic mucosal resection is an effective treatment.
Select the answer using the code given below.
An air fluid level with dilated oesophagus and "bird beak" appearance in a barium swallow is diagnostic of: