26th May 2025

A 54-year-old man presents with a history of epigastric pain and weight loss.

A 54-year-old man presents with a history of epigastric pain and weight loss. He has a background anxiety, alcohol excess and type 2 diabetes.  Bloods show:

Hb 133 g/L (114-150)

WCC 9.1 10^9/L (4.1-11.1)

Platelets 112 10^9/L (150-400)

ALT 60 U/L (0-34)

What is the most important next investigation?

Select the SINGLE most appropriate option from the list below. Select ONE option only.