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A mosaic, consisting of 85 fluorescence image strips, of excised tissue from breast cancer surgery. The mosaic shows a central bright-appearing region of tumor and outlying somewhat darker-appearing regions of fat and fibrous tissue. The nucleus of cells appear to be bright. Closer inspection (insets) shows: (a) cancer cells invading a region of fat cells (b) a breast duct with hollow lumen (c) cancer cells proliferating in a duct. (Continued on next page.)
