Variation in the rate of detection of minute and small early gastric cancers at diagnostic endoscopy may reflect the performance of individual endoscopists.

Objective: The documented variation in gastric cancer (GC) detection among endoscopists has often been dismissed as a coincidental artefact of the low incidence of gastric neoplasms; it is not considered associated with differences in physicians' performance of the esophagogastroduodenoscopy procedure. This study is to confirm whether significant variations among endoscopists in early GC detection suggest the individual performance of the upper endoscopy.

Design: A retrospective observational study at a single centre in Japan assessed the results of 218 early GCs detected during 25 688 routine esophagogastroduodenoscopies by 12 endoscopists.

Impact of combined pulmonary fibrosis and emphysema on surgical complications and long-term survival in patients undergoing surgery for non-small-cell lung cancer.

Purpose: The outcome of radical surgery for lung cancer was investigated in patients with combined pulmonary fibrosis and emphysema (CPFE).

Methods: A retrospective chart review involved 250 patients with lung cancer who underwent pulmonary resection at Tokyo Women's Medical University Yachiyo Medical Center between 2008 and 2012. Based on the status of nontumor-bearing lung evaluated by preoperative computed tomography (CT), the patients were divided into normal, emphysema, interstitial pneumonia (IP), and CPFE groups, and their clinical characteristics and surgical outcome were analyzed.