Table 2 Comparison of clinicopathological features in MBC studies published since 1996 and examining >30 cases.

From: Characterisation of male breast cancer: a descriptive biomarker study from a large patient series

Feature

1 This study

Study reference

Combined data excluding our study

Combined data including our study

Male Breast Cancer Pooling Project31

12

11

10

14

32

16

33

19

34

17

18

35

36

37

38

Number

446

111

91

134

73

145

2202

378

60

58

39

30

65

41

47

46

1538

1984

1328

Histology

 Ductal

359 (81)

99 (89)

86 (95)

121 (90)

54 (74)

130 (90)

181 (82)

283 (75)

46 (77)

55 (95)

36 (92)

25 (83)

61 (94)

37 (90)

47 (100)

19 (41)

1280 (83)

1639 (83)

1123 (85)

 Lobular

3 (1)

1 (1)

0 (0)

3 (2)

0 (0)

3 (2)

0 (0)

4 (1)

2 (3)

2 (3)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

1 (2)

16 (1)

19 (1)

18 (1)

 Other

63 (14)

10 (9)

5 (5)

10 (7)

19 (26)

12 (8)

0 (0)

13 (3)

12 (20)

0 (0)

3 (8)

5 (17)

4 (6)

4 (10)

0 (0)

7 (15)

104 (7)

167 (8)

155 (12)

 N/A

21 (5)

1 (1)+

0 (0)

0 (0)

0 (0)

0 (0)

39 (18)#

78 (21)#

0 (0)

1 (2)+

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

19 (41)#

138 (9)

159 (8)

32 (2)

Grade

 1

48 (11)

14 (13)

2 (2)

32 (24)

14 (19)

35 (24)

15 (7)

33 (9)

2 (3)

7 (12)

25 (64)

1 (3)

9 (14)

1 (2)

8 (17)

4 (9)

202 (13)

250 (13)

292 (22)

 2

177 (40)

62 (56)

54 (59)

54 (40)

45 (62)

64 (44)

98 (45)

153 (40)

31 (52)

24 (41)

16 (53)

31 (48)

11 (27)

27 (57)

12 (26)

682 (44)

859 (43)

661 (50)

 3

137 (31)

26 (23)

26 (29)

48 (36)

10 (14)

46 (32)

85 (37)

79 (21)

27 (45)

13 (22)

13 (33)

13 (43)

25 (38)

29 (71)

12 (26)

8 (17)

460 (30)

597 (30)

359 (27)

 N/A

84 (19)

9 (8) #

9 (10)+

0 (0)

4 (5) $

0 (0)

22 (10)#

113 (30)#

0 (0)

14 (24)+

1 (3)+

0 (0)

0 (0)

0 (0)

0 (0)

22 (48)#

194 (13)

278 (14)

16 (1)

Node

+

134 (30)

68 (61)

41 (45)

61 (46)

26 (36)

66 (46)

78 (35)

105 (28)

20 (33)

27 (47)

16 (41)

9 (30)

31 (48)

10 (24)

20 (43)

22 (48)

600 (39)

734 (37)

399 (30)

 −

126 (28)

43 (39)

45 (49)

52 (39)

39 (53)

54 (37)

83 (38)

145 (38)

26 (43)

29 (50)

17 (44)

9 (30)

34 (52)

8 (20)

13 (28)

15 (33)

612 (40)

738 (37)

677 (51)

 N/A

186 (42)

0 (0)

5 (5)+

21 (16)+

8 (11)$

25 (17)+

59 (27)#

128 (34)#

14 (23)#

2 (3) +

6 (15)+

12 (40)#

0 (0)

23 (56)#

14 (30) #

9 (20 #

326 (21)

512 (26)

252 (19)

ERα

+

375 (84)

107 (96)

88 (97)

125 (93)

68 (93)

131 (90)

193 (88)

245 (65)

57 (95)

47 (81)

34 (87)

26 (87)

62 (95)

37 (90)

24 (51)

19 (41)

1263 (82)

1638 (83)

 −

28 (6)

4 (4)

3 (3)

8 (6)

5 (8)

14 (10)

9 (4)

23 (6)

1 (2)

0 (0)

5 (13)

4 (13)

3 (5)

3 (7)

23 (49)

6 (13)

111 (7)

139 (7)

 N/A

43 (10)

0 (0)

0 (0)

1 (1)$

0 (0)

0 (0)

18 (8)#

110 (29)#

2 (3)#

11 (19)+

0 (0)

0 (0)

0 (0)

1 (3)#

0 (0)

21 (46)#

164 (11)

207 (10)

PR

+

330 (74)

99 (89)

84 (92)

90 (67)

68 (93)

97 (67)

160 (73)

224 (59)

52 (87)

37 (64)

29 (74)

25 (83)

51 (78)

29 (71)

22 (47)

19 (41)

1086 (71)

1416 (71)

 −

65 (15)

12 (11)

7 (8)

43 (32)

5 (7)

48 (33)

41 (19)

43 (9)

5 (8)

10 (17)

10 (26)

5 (17)

14 (22)

11 (27)

25 (53)

3 (7)

282 (18)

347 (18)

 N/A

51 (11)

0 (0)

0 (0)

1 (1)$

0 (0)

0 (0)

19 (8)#

111 (29)#

3 (5)#

11 (19)+

0 (0)

0 (0)

0 (0)

1 (2)#

0 (0)

24 (52)#

170 (11)

221 (11)

HER2

+

7 (2)

9 (8)

13 (14)

4 (3)

1 (1)

5 (3)

18 (8)

55 (15)

5 (8)

2 (3)

4 (10)

3 (10)

6 (9)

18 (44)

0 (0)

7 (15)

150 (10)

157 (8)

 −

290 (65)

102 (92)

72 (79)

130 (97)

68 (93)

140 (97)

157 (71)

139 (37)

50 (83)

17 (29)

35 (90)

27 (90)

56 (86)

22 (54)

0 (0)

10 (22)

1025 (67)

1315 (66)

 N/A

149 (33)

0 (0)

6 (7)+

0 (0)

4 (5) $

0 (0)

45 (21)#

184 (49)#

5 (8)#

39 (67) +

0 (0)

0 (0)

3 (5)#

1 (2)#

47 (100)$

29 (63)#

363 (24)

512 (26)

  1. 1Includes data from Shaaban et al.9. 2Excludes frozen cases (n = 66). Due to lack of clear definition for grade and/or histological subtypes the analysis excludes refs 13, 15, 50, 51 and 52 which examined 77, 58, 30, 99 and 98 cases, respectively. Numbers in parentheses refer to percentages which were rounded to the nearest whole number. N/A refers to data which was not available#, missing+ or not reported$. These cases were stratified into molecular subtypes and hormone receptor status was not reported specifically.