analyzing the topographical distribution of adenomas for definite age groups ( 40-59 , 60-69 , 70-79 and 80-99 years of age ) , it became evident that the topographical distribution is not constant , but shows an age-dependent shift-to-the-right , i.e . with advancing age an increase in the relative frequency of adenomas in the proximal colonic segments ( from caecum to transverse colon ) and a decrease in the distal segments ( from descending colon to rectum ) .
C0009368
colonic
C0227386
transverse colon