PMC3862231_01
Preoperative colonoscopy revealed a malignant partially obstructing tumor in the sigmoid colon. The lesion was tattooed with 5 mL of India ink.
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India ink to guide a laparoscopic approach (Fig. 1). In December 2012, she underwent robotic-assisted laparoscopic rectosigmoid resection with end-to-end colorectal anastomosis approximately 12 cm from the anal verge.