Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content +++ Color Plates ++ Plate 1. Rectal mucosal biopsy specimen from a patient with dysentery caused by shigellosis. There is considerable mucosal inflammation caused by infiltration with polymorphonuclear leukocytes and mononuclear cells, as well as substantial damage to surface epithelial cells. However, mucosal architecture is generally preserved with straight, closely adjacent crypts. A crypt microabscess is seen on the right. Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 2. Rectal mucosal biopsy specimen from a patient with dysenteric stools caused by a flare of chronic ulcerative colitis. The mucosa is heavily infiltrated with polymorphonuclear leukocytes and mononuclear cells. In contrast to Plate 1, mucosal architecture is markedly distorted, with substantial reduction in crypts and distortion of those that remain. Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 3. Endoscopic appearance of colonic ischemia. (Used with permission from David Stockwell, MD.) Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 4. Esophageal carcinoma. Fused PET-CT image shows a "hot spot" (black arrow) at the level of the distal esophagus corresponding to squamous cell carcinoma. Note the hepatic metastasis (white arrowhead). Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 5. Colonic polyp. Three-dimensional endoluminal reconstructed image confirms the presence of a colonic polyp (arrow). (For corresponding axial MDCT image, see Figure 9–17 in the text.) Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 6. Severe erosive esophagitis with peptic stricture. Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 7. Esophageal stricture prior to dilation. Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 8. Postdilation appearance of esophageal stricture shown in Plate 7. Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 9. Endoscopic appearance of Barrett esophagus. Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 10. Histopathologic findings in nondysplastic Barrett esophagus. Note the glandular epithelium containing goblet cells. (Used with permission from Jason Hornick, MD, PhD, Brigham and Women's Hospital.) Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 11. Histopathologic findings of low-grade dysplasia in Barrett esophagus. The surface epithelium displays nuclear stratification, limited to the lower half of the cytoplasm. (Used with permission from Jason Hornick, MD, PhD, Brigham and Women's Hospital.) Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 12. Histopathologic findings of high-grade dysplasia in Barrett esophagus. There is full-thickness nuclear stratification and the mucosa has a villous appearance. (Used with permission from Jason Hornick, MD, PhD, Brigham and Women's Hospital.) Graphic Jump LocationView Full Size||Download Slide (.ppt) ++ Plate 13. Nodule of high-grade dysplasia in Barrett esophagus. Graphic Jump LocationView Full Size||... Your Access profile is currently affiliated with [InstitutionA] and is in the process of switching affiliations to [InstitutionB]. Please select how you would like to proceed. Keep the current affiliation with [InstitutionA] and continue with the Access profile sign in process Switch affiliation to [InstitutionB] and continue with the Access profile sign in process Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Error: Incorrect UserName or Password Username Error: Please enter User Name Password Error: Please enter Password Sign in Forgot Password? Forgot Username? Download the Access App: iOS | Android Sign in via OpenAthens Sign in via Shibboleth You already have access! Please proceed to your institution's subscription. Create a free profile for additional features.