POLYPS of the rectum and colon have been observed with increasing ... 3 Their patient had a 2.5-mm. mucosal excrescence of the rectum that had been observed to be of similar size six years before.

Conclusions: Endoscopic mucosal resection using 0.13% HA to colon polyps of less than 20 mm diameter is more effective than NS for complete resection and maintenance of mucosal elevation.