Ink Injection for Marking of Gastrointestinal-Lesions: The Expert's Approach

Endoscopy-assisted injection of India ink is a useful method for facilitating surgical and endoscopic identification of gastrointestinal lesions. It is important, especially in cases of nonpalpable lesions and before laparoscopy. Injection of submucosa with saline bleb and needle insertion at an oblique angle will prevent intraperitoneal application of the marker. Multiple injections, circumferentially in the colon, have been suggested to optimize operative localization. Microabscesses after the application of India ink were described, use of commercial suspension of presterilized and prediluted carbon particles has not been associated with any complications. This article is part of an expert video encyclopedia.