Misato Nagao

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PURPOSE Endoscopic submucosal dissection (ESD) is a minimally invasive treatment for early gastric cancer (EGC) with negligible risk of lymph node metastasis (LNM). When a patient is determined to have noncurative resection after ESD, additional surgical resection with lymph node dissection is recommended. Previous studies report that LNM is found in about(More)
A 34-year-old woman was referred to our hospital because of the development of dysphagia and weight loss. Esophagogastroduodenoscopy (EGD) showed a submucosal tumor in the middle of the esophagus (▶Fig. 1 a) and endoscopic ultrasonography (EUS) revealed a bilobed cystic lesion within the submucosal layer. Computed tomography (CT) of the chest showed a(More)
AIM To investigate the utility of photodynamic diagnosis (PDD) using 5-aminolevulinic acid (5-ALA) to detect gastric/colorectal tumors. METHODS This prospective single-center study investigated inter-subject variability in patients with early-stage gastric/colorectal tumor indicated for endoscopic resection. Subjects were patients with gastric or(More)
This study aimed to evaluate the utility of optical enhancement (OE) in early gastric cancer demarcation. Twenty lesions of early gastric cancer were examined by PENTAX endoscopy system with OE-1 and OE-2 functions. The areas of tumor demarcation identified by 12 evaluators (6 novice and 6 experienced) were compared to the corresponding correct areas(More)
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