Table 2 Cytoplasmic and membranous expression of ALCAM evaluated as immunoreactivity score in normal breast tissue, ductal carcinoma in situ, and invasive breast carcinoma.

ALCAM	Normal breast tissue (n = 137)	DCIS (n = 65)	Invasive carcinoma (n = 162)
IRS cytoplasmic
median	2	4	6
mean	2.7	5.1	5.4
IRS membranous
Median	3	4	4
Mean	3.2	4.9	4.7

ALCAM, activated leucocyte cell adhesion molecule; DCIS, ductal carcinoma in situ; IRS, immunoreactive score.