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Table 1 Patients characteristics and clinicopathologic features associated with further lymph node metastases at the N2 site

From: Process of distant lymph node metastasis in colorectal carcinoma: Implication of extracapsular invasion of lymph node metastasis

The N2 site metastasis Positive Negative  
Patients (n) 6 31 P value
Age (y ± SD) 71.5 ± 14.9 64.5 ± 14.4 0.301
Gender (M/F, n) 2/4 22/9 0.193
Location (Colon/Rectum, n) 5/1 21/10 0.782
Histrogical type (tub1-2/muc, n) 5/1 30/1 0.729
Tumor size (mm) 49.5 ± 14.1 40.0 ± 18.5 0.256
pT category (T1,2/T3,4, n) 0/6 7/24 0.470
Number of positive LNs (n) 3.5 ± 1.0 2.2 ± 2.0 0.149
ECI (n) 6 9 0.005
Lymphovascular invasion (n) 6 30 0.353
CEA (3.0<, n) 2 10 0.671
  1. LN, lymph node; ECI, extracapsular invasion.