Dilated (D-) vessels identified by magnifying endoscopy with narrow-band imaging (M-NBI) may be useful for predicting submucosal invasion of early gastric cancer. Here, we report two typical patients. Case 1 : An 82-year-old man admitted with a 10 mm early gastric cancer in the middle of the gastric body. M-NBI revealed D-vessels in the anal side of the lesion. Case 2 : A 68-year-old man admitted for treatment of a 25 mm early gastric cancer in the cardia. M-NBI revealed a D-vessel on the raised area of the depressed lesion. In both cases, endoscopic submucosal dissection (ESD) was performed. The pathological diagnosis was adenocarcinoma of the stomach with minimal submucosal invasion (SM1).
