Endoscopic and clinicopathologic characteristics of early gastric cancer with high microsatellite instability

Figure 1 Polymerase chain reaction results of microsatellite analysis markers. A: Typical case of microsatellite stable early gastric cancer with no frameshift mutation; B: Typical case of high microsatellite instability showing frameshift mutations at 4 markers (BAT26, D5S346, BAT25 and D2S123, indicated as arrow).

Figure 2 Typical endoscopic findings of microsatellite instability mutation early gastric cancer. Typical endoscopic features of high microsatellite instability early gastric cancers, which are grossly protruded type, arising from co-existing underlying adenoma, at an antral location.