Clinical Features of False-Negative Early Gastric Cancers: A Retrospective Study of Endoscopic Submucosal Dissection Cases

Figure 1

An example of a false-negative EGC. This patient had undergone EGD for an annual medical checkup after Helicobacter pylori eradication. (a) Endoscopy 8 months before detection. The cardia was observed in the retroflex view, but the scope was not close to the lesion located in the cardia at the lesser curvature, which can be recognized retrospectively (arrowhead). (b) Endoscopy at the time of detection. A slightly elevated lesion is shown (arrowhead). (c) It is clearly visible by indigo carmine chromoendoscopy. The biopsy specimen reveals well-differentiated adenocarcinoma. EGC: early gastric cancer; EGD: esophagogastroduodenoscopy.

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(b)

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