Fig. 4
From: Macro- and microscopic findings of ICG fluorescence in liver tumors
Microscopic findings from ICG fluorescence imaging (IFI) in tissue sections by using a fluorescence microscope with an ICG-B-NQF and HE staining of the adjacent section. a Normal liver; hepatocyte IFI was not strong; IFI in the bile canaliculus exhibited increased strength (case 3). b Cirrhotic livers; hepatocytes had stronger IFI than normal livers (case 5). c IFI was observed in the cytoplasm of cancer cells (case 9). d IFI was observed in the cytoplasm of cancer cells (case 4). e Tumor cells had heterogeneous fluorescence. We observed the IFI signal of cancer cells and of non-cancer cells surrounding cancer cells (case 12). f Nuclear IFI signal in cancer cells was observed (case 12). g IFI existed in the cytoplasm of non-cancer cells surrounding cancer cells (case 14)