Table 3 Rate of reporting of peritoneal and circumferential resection margin involvement and extramural vascular invasion by total number of lymph nodes retrieved in the study population

From: The validity of the Royal College of Pathologists’ colorectal cancer minimum dataset within a population

  

Number of nodes examined

 

0–6

7–12

>12

Unknown

Characteristics

 

n

%

n

%

n

%

n

%

Peritoneal involvement

Yes

304

26.2

417

35.9

426

36.7

13

1.1

 

No

1295

31.5

1536

37.4

1245

30.3

35

0.9

 

Unknown

193

28.6

265

39.2

185

27.4

33

4.9

EMVI

Yes

215

20.3

390

36.8

450

42.4

6

0.6

 

No

804

25.6

1221

38.9

1099

35.0

15

0.5

 

Unknown

773

44.2

607

34.7

307

17.6

60

3.4

CRM (rectal cases only)

Yes

66

25.4

91

35.0

99

38.1

4

1.5

 

No

374

31.1

456

37.9

362

30.1

11

0.9

 

Unknown

98

41.4

69

29.1

54

22.8

16

6.8