Table 4 Accuracy of markers in combination to predict a lower gastrointestinal primary

From: A combination of the immunohistochemical markers CK7 and SATB2 is highly sensitive and specific for distinguishing primary ovarian mucinous tumors from colorectal and appendiceal metastases

   

GI vs Ov

CRC vs Ov

App vs Ov

Rank

Markers (N)

Marker combination assessed

ROC

Accuracy

ROC

Accuracy

ROC

Accuracy

1

5

CK7 3-tier, SATB2 3-tier, CDX2 3-tier, PAX8 3-tier, CK20 3-tier

0.981

95.3

0.988

96.0

0.976

94.7

2

4

CK7 3-tier, SATB2 3-tier, CDX2 3-tier, PAX8 3-tier

0.978

95.8

0.986

95.7

0.973

94.7

3

3

CK7 3-tier, SATB2 3-tier, PAX8 3-tier

0.978

95.6

0.986

95.7

0.969

93.9

4

3

CK7 3-tier, SATB2 3-tier, CDX2 3-tier

0.976

95.6

0.986

95.7

0.966

93.5

5

2

CK7 3-tier, SATB2 3-tier

0.973

95.3

0.984

95.3

0.957

93.5

6

5

SATB2 present, CK7 absent, PAX8 absent, CDX2 present, CK20 present

0.972

95.3

0.983

94.6

0.96

93.1

7

4

SATB2 present, CK7 absent, PAX8 absent, CDX2 present

0.972

95.1

0.982

96.0

0.959

92.0

8

3

SATB2 present, CK7 absent, PAX8 absent

0.97

94.3

0.981

95.0

0.957

91.6

9

3

CK7 3-tier, CDX2 3-tier, CK20 3-tier

0.97

93.2

0.98

95.0

0.962

91.6

10

2

SATB2 present, CK7 absent

0.963

93.5

0.979

93.9

0.945

90.5

11

2

CK7 3-tier, CK20 3-tier

0.956

92.2

0.968

93.9

0.939

90.5

12

2

CK7 nondiffuse, SATB2 present

0.953

91.7

0.963

93.2

0.942

89.7

13

3

CK7 absent, CDX2 present, CK20 present (clinical standard)

0.922

87.5

0.954

93.9

0.886

86.6

  1. GI gastrointestinal, Ov ovarian, CRC colorectal, App appendiceal, ROC Receiver Operating Characteristic