Histological Distinction between the Granular and Nongranular Types of Laterally Spreading Tumors of the Colorectum

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/mm^2, mean ± SD)			0.033
Arteriole’s density (arteriole/mm^2, mean ± SD)			<0.01
Venule’s density (venule/mm^2, mean ± SD)			0.537

*Student’s t-test.