Study of 135 ultrasonograms showed that it was possible to display the normal pancreas with 82% success. The pancreatic head ranges between 11 and 30 mm in thickness, the isthmus 4-21 mm in thickness and the corporeo-caudate area 24-32 mm in thickness. The pancreas may have a sausage, dumb-bell or tadpole shape. Variance from these outlines and thicknesses should be considered pathological.