1.   Biopsy and resection specimens were reviewed for the differentiation grade of the tumour.

2.   Slides were reviewed to determine the differentiation grade of the tumour.

3.   For squamous cell carcinomas of the oesophagus, histological differentiation grade has no significant effect on survival.

4.   In our series the histological differentiation grade of the tumour had no significant influence on survival.

5.   Survival was not influenced by the histological differentiation grade of the tumour.