Micropapillary Pattern at the Invasive Front and Its Association with Unresectable Colorectal Carcinomas

Table 1

Clinicopathological characteristics of resectable and unresectable CRCs.

Variable	Unresectable CRCs	Resectable CRCs	𝑃 value
	(𝑛=34)	(𝑛=230)
Age (years)
≤50	6	19	0.109
>50	28	211
Sex
Male	19	119	0.652
Female	15	111
Location
Left colon	24	158	0.824
Right colon	10	72
Depth of tumor invasion
pT2	0	36	0.007
pT3	34	194
Lymph node metastasis
pN1	18	167	0.019
pN2	16	63
Lymphatic invasion
ly (−)	0	8	0.602
ly (+)	34	222
Venous invasion
v (−)	1	27	0.145
v (+)	33	203
Histologic type
tub	31	213	0.730
por/muc	3	17
Micropapillary pattern
Presence	6	6	0.002
Absence	28	224

CRCs: colorectal carcinomas.