Table 4: Submucosal vascular density of laterally spreading tumor-granular (LST-G) and laterally spreading tumor-nongranular (LST-NG) types.

LST-G (16)LST-NG (16) value*

Microvessel density (arterioles + venules/mm2, mean ± SD)0.033
 Arteriole’s density (arteriole/mm2, mean ± SD)<0.01
 Venule’s density (venule/mm2, mean ± SD)0.537

*Student’s t-test.