retention of barium in the caecum ( dixon et al. , 1967 ; gupta and fraser , 1985 ) , appendix ( maglinte et al , 1981 ) and colonic diverticula ( burrows , 1962 ) has been reported after barium meal as has colonic perforation during barium enema examination ( ott and gelfand , 1983 ) .
C0007531
caecum
C0003617
appendix