Visual observation of MPM images at 760 nm showed that most of the cells within the adenomas and adenocarcinomas displayed dominant fluorescence emission at 420 to 460 nm. However, quantitative analysis of the MPM images revealed that, compared to cells within adenomas, cells within the adenocarcinomas displayed lower fluorescence emission at 500 to 550 nm, relative to fluorescence emission at 420 to 460 nm. In particular, we calculated the Green (500 to 550 nm)/Blue (420 to 460 nm) emission ratio (the average pixel intensity from the 500 to 550 nm channel vs. the average pixel intensity from the 420 to 460 nm channel) from MPM images of all adenomas and (the central regions) of all adenocarcinomas. On average, at 760 nm excitation, the cells within adenocarcinomas displayed a Green (500 to 550 nm)/Blue (420 to 460 nm) ratio that was lower than the adenomas (ratio for adenocarcinomas: , , ; ratio for adenomas: , , ). This indicates that, for the current set of MPM images, cells within the malignancies displayed a less pronounced fluorescence at 500 to 550 nm (blue-shifted fluorescence) compared to the benign tumors.