Clinical applications of 5-aminolevulinic acid-mediated fluorescence for gastric cancer

Figure 1 Staging laparoscopy images using photodynamic diagnosis-5-aminolevulinic acid showing serosal invasion of gastric cancer. A whitish nodulated surface was seen in the stomach (A), which was visualized by ALA-induced red fluorescence (B). ALA: 5-aminolevulinic acid.

Figure 2 Peritoneal metastasis of gastric cancer comparing photodynamic diagnosis-5-aminolevulinic acid with conventional methods during staging laparoscopy. ALA-induced red fluorescence was seen in the white nodule (B, arrow), which appeared as a non-specific nodule under white light (A). ALA: 5-aminolevulinic acid.

Figure 3 Peritoneal metastasis of gastric cancer detected by photodynamic diagnosis using 5-aminolevulinic acid. ALA-induced red fluorescence was seen in the omentum (B, arrow), which was not detected under white light (A). ALA: 5-aminolevulinic acid.