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This chapter provides details regarding the histology of Barrett's esophagus and the approach to intestinal metaplasia at esophagogastric junction. As dysplasia is still considered to be the “gold standard” biomarker for Barrett's‐related adenocarcinoma, the major focus of this chapter is pathologic aspects of Barrett's‐related dysplasia. The chapter discusses diagnostic criteria for grading dysplasia,...
We report an example of dysplastic intestinal-type metaplasia involving endometriosis of the appendix in a 45 year old woman. One other example of this phenomenon has been reported. As it occurs within the muscular wall of the appendix, confusion with low grade appendiceal mucinous neoplasm (LAMN) may occur. Evidence supporting the metaplastic nature of the intestinal epithelium is offered. As the...
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