In vivo subsurface morphological and functional cellular and subcellular imaging of the gastrointestinal tract with confocal mini-microscopy

Figure 1 A: Esophagus after intravenous injection of acriflavine hydrochloride: The germinative zone and the columnar arrangement within the layered structure can be easily visualized. Note that the mouse esophagus is keratinized; B: Ex vivo H&E staining of the corresponding specimen; C: In vivo visualization of gastric glands. Note the dos-à-dos-arrangement of the glands. Only scarce nuclei stain within the loose connective tissue of the lamina propria; D: Corresponding specimen of the mouse stomach in a transverse section.