Figure 3. Distribution of lymphatic metastasis in patients subjected to D3 nodal dissection. 231, Pericolic lymph node of descending colon; 241, pericolic lymph node of sigmoid colon; 251, perirectal lymph node; 232, intermediate lymph node of descending colon; 242, intermediate lymph node of sigmoid colon; 252, intermediate lymph node of rectal; 253, apical lymph node of IMA.
