Background And Study Aims: Diffuse infiltrative gastric cancer can be difficult to diagnose owing to a lack of endoscopic features in the superficial mucosa. Moreover, a forceps biopsy may not reveal a pathological diagnosis. We aimed to evaluate the diagnostic yield and safety of endoscopic mucosal resection (EMR) and 'open-lid submucosal biopsy', a technique wherein EMR followed by biopsy of the ulcer floor is performed for a pathological diagnosis.
View Article and Find Full Text PDFBackground: Patients with esophageal squamous cell carcinoma (ESCC) frequently develop synchronous head and neck squamous cell carcinoma (HNSCC). With advances in endoscopic technology and widespread screening of synchronous cancers, the detection of synchronous HNSCC and superficial ESCC (SESCC) is increasing. We aimed to evaluate the impact of preceding HNSCC treatment on synchronous SESCC.
View Article and Find Full Text PDFBackground And Aims: Local recurrence is a significant concern in endoscopic resection of superficial nonampullary duodenal tumors (SNADTs). Our objective was to elucidate the clinical outcomes of salvage endoscopic treatment.
Methods: This retrospective study included consecutive patients who underwent endoscopic resection of SNADTs between January 2013 and December 2021.