imaging of islet cell tumours

Question Number 1532

the following are true of the imaging of islet cell tumours

a) isulinomas tend to be hypo-echoic on ultrasound
b) the sensitivity for detection by ultrasound is higher for insulinomas athn for gastrinomas
c) it is recommended to review the CT images of the pancreas under narrow window settings
d) islet cell tumours tend to be of lower intensity than the surrounding pancreas on T2-weighted images
e) selective arteriography should include a selective injection through the inferior mesenteric artery

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