TABLE 1 DCIS Grade on SCBB versus Findings on Excision (ex)*

From: Histologic and Radiographic Analysis of Ductal Carcinoma In Situ Diagnosed Using Stereotactic Incisional Core Breast Biopsy

 

Low (26)

Intermediate (31)

High (36)

Total (93)

Percent invasive on ex

0% (0)

6% (2)

28% (10)

13% (12)

 Degree of invasion

    

T1a

2

7

9

T1b

1

1

T1c

2

2

Percent benign on ex

15% (4)

16% (5)

6% (2)

12% (11)

Different DCIS grade on core versus ex

7% (2)

10% (4)

28% (10)

17% (16)

  1. *Excludes cases with microinvasion or suspicious for invasion.