Skip to main content

Table 3 Number and distribution of observed lymphatic compartments by UML and PTD classifications for each mapping procedure

From: nPTD classification: an updated classification of gastric cancer location for function preserving gastrectomy based on physiological lymphatic flow

a. Blue dye mapping
Tumor location All site U UM·MU M L P T D
No. of patients 323 36 7 171 109 40 141 142
Distribution of basins
l-GA 81.4% 97.2% 85.7% 88.9% 64.2% 95.0% 90.8% 68.3%
r-GA 28.2% 0.0% 0.0% 17.5% 56.0% 0.0% 0.0% 64.1%
r-GEA 64.4% 0.0% 28.6% 64.9% 87.2% 0.0% 68.1% 78.9%
l-GEA 5.9% 19.4% 42.9% 5.3% 0.0% 30.0% 5.0% 0.0%
p-GA 1.5% 13.9% 0.0% 0.0% 0.0% 12.5% 0.0% 0.0%
 #2 2.5% 22.2% 0.0% 0.0% 0.0% 20.0% 0.0% 0.0%
Number of basins
 1 34.1% 58.3% 57.1% 33.9% 24.8% 52.5% 40.4% 22.5%
 2 48.3% 30.6% 28.6% 54.4% 45.9% 37.5% 55.3% 44.4%
 3 17.6% 11.1% 14.3% 11.7% 29.4% 10.0% 4.3% 33.1%
b. ICG fluorescence mapping
Tumor location All site U UM·MU M L P T D
No. of patients 93 18 6 44 25 17 35 41
Distribution of basins
l-GA 89.2% 100.0% 100.0% 93.2% 72.0% 100.0% 91.4% 82.9%
r-GA 26.9% 0.0% 0.0% 18.2% 68.0% 0.0% 0.0% 61.0%
r-GEA 58.1% 0.0% 66.7% 70.5% 76.0% 11.8% 71.4% 65.9%
l-GEA 4.3% 5.6% 50.0% 0.0% 0.0% 17.6% 2.9% 0.0%
p-GA 1.1% 5.6% 0.0% 0.0% 0.0% 5.9% 0.0% 0.0%
 #2 5.4% 27.8% 0.0% 0.0% 0.0% 29.4% 0.0% 0.0%
Number of basins
 1 33.3% 66.7% 33.3% 27.3% 20.0% 52.9% 37.1% 22.0%
 2 48.4% 27.8% 16.7% 63.6% 44.0% 29.4% 60.0% 46.3%
 3 18.3% 5.6% 50.0% 9.1% 36.0% 17.6% 2.9% 31.7%
  1. All percentage numbers represent the percentage of confirmed lymphatic flow per tumor location
  2. #2 No. 2 lymph node, l-GA left gastric artery basin, l-GEA left gastroepiploic artery basin, p-GA posterior gastric artery basin, r-GA right gastric artery basin, r-GEA right gastroepiploic artery basin