Figure 1. The black box indicates a schematic interpretation of the radiation field. A.

Part of pancreas (i.e. head and part of tail) and part of liver in radiation field B Total pancreas (i.e. head and tail) and part of liver in radiation field C Part of pancreas (i.e. head and part of tail) and total liver in radiation field D Total pancreas (i.e. head and tail) and total liver in radiation field Categories: B+D Total pancreas in radiation field A+C Part of pancreas in radiation field C+D Total liver in radiation field A+B Part of liver in radiation field Original figure was retrieved from http://openlearn.open.ac.uk.