The oesophagus is a long tube that delivers food, fluids and saliva from the mouth and throat to the stomach.
Adenocarcinoma is the most common type of oesophageal cancer and occurs in glandular tissue, most often in the lower part of the oesophagus near the stomach.
These are often associated with precancerous change as a result of long term reflux and acid damage to the lower oesophagus.
Squamous cell carcinoma occurs in the cells lining the oesophagus. This type of oesophageal cancer is more common in smokers, African-Americans and in people of Asian descent.