Ink Masters: The Art and Science of Colonic Tattooing

The use of endoscopic tattooing to localize a suspected or known malignant lesion in the colon is widespread. However, no recommended standard exists for the practice, and tattooing technique varies among physicians, new research shows. 

“My colleagues and I thought it was interesting that we don’t have established guidelines on endoscopic tattooing in the United States. We hypothesized that practices probably vary across the country and from one institution to another,”