Your doctor might recommend an EUS examination to evaluate and diagnose the causes of your persistent abdominal pain or your abnormal weight loss. It can also be used to determine the stages of cancer, to examine gallstones or liver tumours and to study other abnormal growths in the bile duct.
Doctors also use EUS to evaluate diseases affecting the pancreas including chronic pancreatitis, and to determine the causes of bowel incontinence (loss of bowel control).
It is also used to study previously diagnosed lumps or lesions. Tissue samples can also be taken during an EUS for further studies to determine their origin and therefore choose the best treatment for you.