Table 2.

Review of data reported on the expression of prognostic and predictive markers of breast adenoid cystic carcinoma (%)

Ref.	No. of cases	Percentage of cases showing positivity
		ER	PR	Her2
Kulkarni et al[14]	933	15	13	NA
Ghabach et al[11]	338	12	2	NA
Arpino et al[5]	28	46	36	NA
Mastropasqua et al[36]	20	15	10	0
Azouley et al[41]	18	0	0	0
Crisi et al[42]	6	0	0	0
Weigelt et al[43]	4	0	0	0

ER: Estrogen receptor; Her2: Human epidermal growth factor receptor 2; NA: Not available; PR: Progesterone receptor.