Fig. 5From: Clinicopathologic correlations of superficial esophageal adenocarcinoma in endoscopic submucosal dissection specimensA. Tissue folding artefact due to improper processing and embedding. Hematoxylin and Eosin stain × 20. B. Pinhole artefact causing curling of tissue at edges leading to difficulty in peripheral margin interpretation. Hematoxylin and Eosin stain. × 40. C. Large pinhole artefact causing disruption of tissue at the edge. × 20Back to article page