MBBS, PhD, MRCP, FRCP.
Gastro Specialist in Manchester.
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What is an EUS?
The scan uses high frequency sound waves transmitted through the tip of an endoscope.
This test allows us to look clearly at your oesophagus (gullet), stomach, pancreas and bile ducts, depending on your underlying condition.
The endoscope is passed down the oesophagus and into the stomach and duodenum. A scan of the surrounding structures can then be carried out.
A small tissue sample (Fine Needle Aspiration/FNA) can be taken through the endoscope, this will be painless.
Although you may have had other scans done, endoscopic ultrasound is a very accurate technique, which may identify information which cannot be seen on conventional scanning.
Small Gallstones not seen by trans abdominal US, CT scan or MRI scan or detected by ENDOSCOPIC US.
Due to the unique information obtained from an EUS there are no real alternatives: eg biliary microlethiasis and small stone less then 5 mm in the CBD are only seen by the EUS in comparision to CT or MRI examination.