Expression of MSI-1 in histological sections of normal colonic mucosa processed by immunohistochemistry. Panel A: single nuclear stained cell at the base of one crypt (red arrow). Panel B: magnification of the area containing the stained cell in panel A. Original magnification 400x.
Femia et al. BMC Cancer 2013 13:48 doi:10.1186/1471-2407-13-48