Table 1

A comparison of biopsies and excisions regarding the frequency of selected pathologic features of DCIS**

Morphologic features

Core biopsy

(n = 40)

Excision

(n = 40)


Maximum nuclear grade 3

18

19

Maximum nuclear grade 2

22

21

Necrosis in DCIS

33

29

Calcification in DCIS

32

29

Comedo-pattern necrosis present (Solid pattern with central necrosis and grade 3/3 nuclear atypia)

16

14

Non-comedo pattern necrosis present (associated with grade 2/3 atypia and/or non-solid patterns)

17

16

Solid pattern only (irrespective of atypia or necrosis)

17

8

Solid and micropapillary only

0

1

Solid, micropapillary, and cribriform only

7

5

Micropapillary only

1

0

Micropapillary and clinging

1

0

Cribriform only

0

1

Micropapillary and cribriform only

2

1

Solid, micropapillary, clinging and cribriform only

0

3

Clinging only

0

0


DCIS ductal carcinoma in-situ; **excludes cases in which no residual DCIS was found in the excision.

Fadare et al. Diagnostic Pathology 2009 4:26   doi:10.1186/1746-1596-4-26

Open Data