UpperGIbiopsies for adenocarcinoma – how many biopsies should endoscopists take?

There is evidence that four or five gastric cancer biopsies are required for accurate HER2 interpretation. However, the number of biopsies that need to be taken to reach this number of viable cancer biopsies is without evidence. This study aimed to address this gap by assessing the number of biopsies required to gain at least four viable biopsies containing cancer.A total of 105 consecutive biopsy cases of gastric and oesophageal adenocarcinoma...