![]() Small-dose tattooing with sterile India ink using a saline test-injection method is effective for tumor localization. Mean tattoo diameter was 2.1 cm on the serosal surface and 2.0 cm on the mucosal surface. Localized leakage of ink was identified during surgery in 1 patient (5%), without fever or abdominal pain. In 2 patients, tattoos were not observed on the serosal surface but were detected on the mucosal surface. Tattoos were observed intraoperatively in 18 patients (90%). Observation and leakage of India ink were evaluated during laparoscopic surgery, and the diameter of tattooing in the specimen was assessed. We injected 0.5 cc of India ink at three circumferential sites at the distal tumor using a saline test-injection method. ![]() ![]() This study aims to evaluate the efficacy of small-dose tattooing with sterile India ink using a saline test-injection method.Ä«etween April 2009 and August 2009, 20 patients underwent colonoscopic tattooing with prepackaged sterile India ink before resection of colorectal tumor. The long-term clinical and histologic consequences of the tattoo have not been studied in a large group of patients. This raises the question of the long-term safety of India ink tattoos. India ink tattooing is widely used for tumor localization however, the tattooing procedure is not yet standardized. Currently, the most common ink used in endoscopic tattooing is India ink because it lasts for a long time and has a low complication rate 252627. Background: When the India ink tattoo is used as a guide for follow-up examinations, the tattoo may remain in the colon for the remainder of that patients life.
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