Diagnostic Pathology of the Intestinal Mucosa

1 Processing of Biopsy Specimens for Light and Electron Microscopy.- Sampling.- Orienting the Sample.- Processing Specimens for Light Microscopy.- Processing Specimens for Electron Microscopy.- 2 Biopsy Interpretation—Light Microscopy.- Normal Villous Architecture.- Normal Epithelium.- Normal Lamina Propria.- Normal Muscularis Mucosae.- 3 Biopsy Interpretation—Electron Microscopy.- Intestinal Epithelial Cells.- Intraepithelial Lymphocytes and Immune Cells of the Lamina Propria.- Other Cells of the Lamina Propria.- Metaplasia.- 4 Immunoperoxidase Techniques: Light and Electron Microscopy Applications.- Materials and Methods: Light Microscopy.- Materials and Methods: Electron Microscopy.- 5 The Abnormal Biopsy.- Recognizing Artifacts.- Interpreting the Abnormal Biopsy.