Abstract
Sessile serrated adenomas/polyps (SSAs) have characteristically flat morphology that can complicate endoscopic resection. With use of conventional snare polypectomy technique, SSAs are associated with significantly higher rates of incomplete resection compared to typical adenomas.1 Following saline-lift EMR, SSA recurrence is seen at rates of 7%-9% after 4-12 months.2,3 Compared to conventional EMR, underwater EMR (UEMR) may achieve higher rates of en bloc resection and quicker resection times with at least comparable rates of safe, curative resection. The propensity of mucosal lesions to involute into the colon lumen under water submersion may be particularly useful during SSA resection.
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