Table 5 Case distribution of all LN cases in Roswell Park Cancer Institute and Pittsburgh Medical Center with the reason of MRI and corresponding rate of upgrade

From: Lobular neoplasia detected in MRI-guided core biopsy carries a high risk for upgrade: a study of 63 cases from four different institutions

 

RPCI (n=26)

Upgrade n (%)

UPMC (n=29)

Upgrade n (%)

P-value

BIRAD 3

1 (4)

0 (0)

5 (17)

1 (20)

0.014a

Staging

17 (65)

5 (29)

8 (28)

3 (38)

—

High risk

8 (31)

2 (25)

16 (55)

4 (25)

—

Mass

9 (35)

0 (0)

12 (41)

3 (25)

NSb

Non-mass

17 (65)

7 (41)

17 (59)

5 (29)

—

  1. Abbreviations: LN, lobular neoplasia; MRI, magnetic resonance imaging; NS, not significant.
  2. aP-value is for the difference in the reason of MRI: BIRAD 3, staging vs high risk between Roswell Park Cancer Institute and Pittsburgh Medical Center.
  3. bP-value is for the difference in the reason for upgrade between Roswell Park Cancer Institute and Pittsburgh Medical Center in terms of MRI type of enhancement (mass vs non-mass).
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