High power view of a biopsy specimen from a patient with Barrett's esophagus has been stained with diamine. This stain demonstrates goblet cells containing sulfated mucins (brown) and nonsulfated mucins (blue).
From: Lewin KJ, Appelman HD. Tumors of the esophagus and stomach. Atlas of tumor pathology (electronic fascicle), Third series, fascicle 18, 1996, Washington, DC. Armed Forces Institute of Pathology.
