NCCN Guidelines for Patients
Stomach Cancer, Version 1.2016
Overview of cancer treatments Endoscopic treatment
esection) removes a
tumor with an endoscope that has a wire loop called
a snare. There is more than one method of how to do
EMR. The methods mainly differ by what devices are
used with the snare to remove the tumor.
Sometimes EMR is all that is needed to remove
a tumor. Other times, the tissue removed by EMR
helps with diagnosis but more treatment is needed.
Some tumors may be removed in multiple pieces with
EMR. However, the larger and deeper a tumor is, the
higher the risk of the tumor returning (recurrence).
Therefore, an expert endoscopist will only perform
EMR on people who are most likely to benefit.
EMR requires that you be sedated but some people
do receive general anesthesia. The procedure can
take about 1 hour to complete. EMR is generally an
outpatient procedure. However, you may stay in the
hospital for 1 or 2 days.
Stomach tumors that have not
invaded deep into the stomach wall
may be removed with endoscopic
resection. This treatment removes
tumors with tools inserted through
An endoscope is
guided into the
Fluid is injected
under the tumor
A cutting tool
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