Histopathological confirmation of similar intramucosal distribution of fluorescein in both intravenous administration and local mucosal application for probe-based confocal laser endomicroscopy of the normal stomach

Figure 7 Fluorescence observed in tissue sections with or without removal of the cryoembedding medium. A: Lower gastric body mucosa tissue obtained 5 min after local mucosal application of fluorescein. When fluorescence is observed without removing the embedding medium, intense green fluorescence is noted around the tissue, and it is difficult to observe fluorescence in the tissue; B: Fluorescence in the tissue can be observed clearly after removing the embedding medium.