Figure 1.

Distribution of ALDH+ cells in benign breast ductules. Brown staining indicates ALDH immunoreactivity. A, ALDH+ cell populations (arrows) located at luminal, basal, and intermediate ductular levels (levels described in detail elsewhere [15]). B, Micrograph showing an ALDH+ cell population (arrow) and ALDH+ stromal cells (arrowhead; as previously described [15]). C, Some ALDH+ cells are locatedin ductular bifurcations (arrow; cell type described previously [4,15]). All sections were counterstained with hematoxylin; scale bars in all three micrographs represent 50 μm.

Isfoss et al. BMC Clinical Pathology 2013 13:28   doi:10.1186/1472-6890-13-28
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