Introduction: A duplication cyst in the alimentary tract is a rare congenital anomaly that most often occurs in the small bowel and rarely occurs in the colon. Most cases in the small bowel are diagnosed at childhood due to complications or symptoms caused by the duplication cyst. However, duplication cysts in the colon are often asymptomatic, despite resulting in rare complications, such as ob...

BACKGROUND Endoscopic submucosal dissection is considered a curative and minimally invasive treatment for early gastric cancer; however, precise pathologic assessment of resected specimens is required to develop further treatment plans. Human error during specimen handling can affect objective assessment of resected specimens. In this study, we investigated whether a novel tissue fixation devic...

A Phase II clinical trial has been initiated to evaluate the efficacy and safety of endoscopic submucosal dissection for intramucosal (cT1a) gastric cancer of undifferentiated type. Patients with cT1a gastric cancer with undifferentiated-type adenocarcinoma are eligible for the study. The tumor size should be 2 cm or less without ulceration. The study will enroll a total of 325 patients from 51...

Gastrointestinal submucosal tumors (SMTs) have been increasingly identified via the use of endoscopic ultrasonography, and removal is often recommended for SMTs that are >2 cm in diameter or symptomatic. Submucosal tunneling endoscopic resection (STER), also known as submucosal endoscopic tumor resection, endoscopic submucosal tunnel dissection or tunneling endoscopic muscularis dissection, is ...

Esophageal submucosal hematoma is a rarely observed condition in which abrupt bleeding occurs between the mucosa and muscularis propria of the esophageal wall, often involving a long portion of the esophagus. Possible causes of submucosal hematoma of the esophagus include external trauma, endoscopic sclerotherapy of the esophageal varices, vigorous vomiting, ingestion of a foreign body, complic...

background: the goal of this investigation was to compare the behavioral and physiological effects of three sedative drug regimens: oral meperidine (om), submucosal meperidine (sm) and oral midazolam (m) in healthy pediatric patients. materials and methods: this study sample consisted of thirty children aged 24-72 months (mean = 41.1) exhibiting definitely negative behavior. three sedative regi...

Gastric submucosal tumors (GSMTs) are frequently found incidentally on routine upper endoscopy. Definitive diagnosis based on histological confirmation is relatively difficult. Even without accurate diagnosis before treatment, open or laparoscopic surgery is considered the standard of care for most GSMTs. Alternatively, endoscopic resection of GSMTs using different techniques has been reported ...

A 71-year-old man in whom a gastric submucosal lesion was found incidentally was referred to our hospital for detailed examination. Esophagastroduodenoscopy showed a submucosal lesion in the body of the stomach. Endoscopic ultrasound revealed a 15-mm hypoechoic round mass with calcifications arising from the muscular layer. Confusing the diagnosis, it resembled a gastrointestinal mesenchymal tu...

Background and Objective: Diagnosis of Hirschsprung’s disease (HD) as the most common cause of neonatal intestinal obstruction is based on the presence of aganglionosis from seromuscular or full thickness biopsy. Due to the complication of full thickness or seromuscular rectal biopsy, mucosal-sub mucosal...