TABLE 2 Apocrine Differentiation in 50 NE Breast Carcinomas

From: Expression of Apocrine Differentiation Markers in Neuroendocrine Breast Carcinomas of Aged Women

Total Cases

Morphological Type

ChA, n (%)

ChB, n (%)

Syn, n (%)

GCDFP-15 (%)

#13

Mucinous

8 (61)

6 (46)

3 (23)

7 (54)

#9

Solid papillary

4 (44)

6 (67)

1 (11)

6 (66)

#15

Solid cohesive

8 (53)

9 (60)

2 (13)

8 (53)

#5

Alveolar

5 (100)

neg

neg

neg

#8

Poorly differentiated

8 (100)

4 (50)

2 (25)

2 foc (0)

  1. ChA, chromogranin A; ChB, chromogranin B; Syn, synaptophysin; GCDFP-15, gross cystic disease fluid protein-15; %, percentage of positive cases in each histological type; neg, negative; foc, focal.
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