In vivo histopathological assessment of the muscularis propria in achalasia by using endocytoscopy (with video).

Background: The histopathology of the muscularis propria (MP) is unknown in patients with achalasia. Endocytoscopy (EC) was developed as an ultra-high magnification endoscopy, and the submucosal tunnel created during peroral endoscopic myotomy (POEM) not only provides access to the MP but also enables subsequent endoscopic assessment of the MP.

Patients And Methods: In seven patients with achalasia (mean ± SD; 35 ± 18.

In vivo gastric mucosal histopathology using endocytoscopy.

Aim: To study the ability of endocytoscopy to identify normal gastric mucosa and to exclude Helicobacter pylori (H. pylori) infection.

Methods: Endocytoscopic examination of the gastric corpus and antrum was performed in 70 consecutive patients.

Utility of intrapapillary capillary loops seen on magnifying narrow-band imaging in estimating invasive depth of esophageal squamous cell carcinoma.

Background And Study Aims: Intrapapillary capillary loops (IPCLs) have been used to estimate histopathological atypia and the invasion depth of squamous cell carcinoma (SCC). The aim of this study was to evaluate the clinical significance of IPCLs.

Patients And Methods: A total of 358 consecutive patients with esophageal neoplasia on magnifying narrow-band imaging (M-NBI) were studied.

In vivo histopathology using endocytoscopy for non-neoplastic changes in the gastric mucosa: a prospective pilot study (with video).

Background: Endocytoscopy (EC), as a novel ultrahigh magnification technology, enables in vivo histopathological diagnoses of the GI tract. EC is particularly exceptional when comparing dysplastic and neoplastic tissue with normal tissue. There are, however, no detailed data for minute or minimal changes in the gastric mucosa.

Control of severe strictures after circumferential endoscopic submucosal dissection for esophageal carcinoma: oral steroid therapy with balloon dilation or balloon dilation alone.

Background: Recent technological advances have allowed superficially spreading intramucosal carcinomas of the esophagus to be successfully resected by circumferential endoscopic submucosal dissection (cESD). After this procedure, esophageal strictures develop in most patients and are mainly treated by endoscopic balloon dilation (EBD).

Objective: To compare oral steroids plus EBD with EBD alone for the management of benign esophageal strictures after cESD.