Stages, types and grades of oesophageal cancer

High grade dysplasia of the oesophagus

High grade dysplasia means that there are severely abnormal cells in the inner lining of the oesophagus. This is sometimes called stage 0.

About high grade dysplasia

High grade dysplasia means that there are severely abnormal cells in the inner lining of the oesophagus.

The high grade dysplasia is only in the top layer of cells lining the inside of the oesophagus (the epithelium). It has not started to grow into the deeper layers. 

Diagram showing stage 0 oesophageal cancer.

High grade dysplasia can change to invasive cancer if you don't have treatment.

People with have a small risk of developing these abnormal cells.

Treatment

Removing the lining of your oesophagus is the main treatment for high grade dysplasia.

You have this surgery through a tube called an endoscope. You are asleep when you have it. The doctor puts the tube down your throat. They can then put a thin wire (snare) through the tube to remove the abnormal area of tissue. 

You might also need treatment to destroy any abnormal areas that the doctor has not been able to remove. This treatment is called radiofrequency ablation.

Read more about treatment for high grade dysplasia

About other stages

Last reviewed: 18 Aug 2023

Next review due: 18 Aug 2026

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