[Sonography in extensive juxtapapillary duodenal diverticulum]

The ultrasonic appearance of a juxtapapillary duodenal diverticulum as a pancreatic pseudo-mass is the subject of the discussion. An attempt is made to explain the homogeneous, echo-poor and solid aspect--even after rescanning through the fluid-filled stomach and duodenum and to correlate it with the diverticula's histological layers. The ERCP is the method of choice to examine the diverticula's inner wall and to investigate at the same time the frequently involved biliary tract and pancreatic diseases.