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Table 2 Clinicopathological chracteristics of hindgut neuroendocrine tumor

From: The clinicopathological significance of angiogenesis in hindgut neuroendocrine tumors obtained via an endoscopic procedure

Age (years)
 Range 37 to 81
 mean ± SD 59.6 ± 12.0
MVD (mm2)
 Range 1.4 to 73.9
 mean ± SD 17.3 ± 14.2
 Relationship to venous invasion Significant positive correlation (Mann–Whitney U test)
LMVD (mm2)
 Range 0 to 22.9
 mean ± SD 6.5 ± 6.5
 Relationship to lymphatic invasion Significant positive correlation (Mann–Whitney U test)
Gender (n, %)
 Male 23, 54.8 %
 Female 19, 45.2 %
Pathological grade (n, %)
 NET G1 34, 81 %
 NET G2 8, 19 %
Ki 67 labeling index (%)
 Range 0.1 to 3.2
 mean ± SD 1.1 ± 0.8
 Relationship to tumor diameter No significant correlation (Pearson’s product–moment correlation coefficient, p = 0.136)
Venous invasion (n, %)
 Negative 32, 76.2 %
 Positive 10, 23.8 %
Lymphatic invasion (n, %)
 Negative 29, 69 %
 Positive 13, 31 %
Tumor diameter (μm)
 Range 998.1 to 10046.0
 mean ± SD 5058.0 ± 2410.3
 Relationship to MVD Significant positive correlation (Pearson’s product–moment correlation coefficient, r = 0.612, p < 0.001)
 Relationship to LMVD No significant correlation (Pearson’s product–moment correlation coefficient, p = 0.744)
Pathological stage (n, %)
 pStage I 40, 95.2 % (all of them are pT1 and n0)
 pStage II 0, 0 %
 pStage IIIB 1, 2,4 % (lymph node metasis positive)
 Unknown 1, 2.4 % (margin positive)
  1. Legend: In this table clinicopathological characteristics and some statistical analyses of 42 hindgut neuroendocrine tumors were summarized
  2. MVD microvessel density, LMVD lymphatic microvessel density, SD standard deviation