Abstract
In the surgical gastrectomy and endoscopic mucosal resection, the tattoo marking is useful to decide the surgical margin. In order to make clear and non-blotted tattoo-marking, we studied the endoscopic reamer as a tattooing device to improve the weak point of the needl's method. The tattoo dye is composed of 20% carbon black, 2 % poly vinylpyrrolidone and the pure ethanol as the solvent. The tattoo dye is autoclaved and attached to the reamer. The reamer is then stabbed 2 mm into the gastric mucosa. In 33 regions of 20 cases of gastric cancer, the clear tattoo-marking was maed in 30 regions (90.9%). The reamer's method is excellent for the endoscopic tattoo marking in the gastric mucosa.
