Imaging of the infiltrating tumor margin.

<p><b>A</b>: CARS image of a human U87MG glioblastoma in a mouse brain. <b>B</b>: CARS image of a separate small glioblastoma island in a mouse brain. <b>C/D</b>: Anti-Ki67 immunohistochemical staining corresponding to A/B. In both examples the very same section was used for CARS imaging and for staining.