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Colonic Polyps
Siva P. Raman, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Pathology

        • Clinical Issues

          TERMINOLOGY

          • Definitions

            • Focal, space-occupying masses that arise from colonic mucosa and protrude into colonic lumen

          IMAGING

          • General Features

            • CT Findings

              • Radiographic Findings

                • Ultrasonographic Findings

                  • Imaging Recommendations

                    • Other Modality Findings

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Natural History & Prognosis

                                    • Treatment

                                      Selected References

                                      1. Spada C et al: Imaging alternatives to colonoscopy: CT colonography and colon capsule. European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastrointestinal and Abdominal Radiology (ESGAR) Guideline - Update 2020. Endoscopy. 52(12):1127-41, 2020
                                      2. Kim DH et al: Flat Serrated polyps at CT colonography: relevance, appearance, and optimizing interpretation. Radiographics. 38(1):60-74, 2018
                                      3. Obaro AE et al: Colon cancer screening with CT colonography: logistics, cost-effectiveness, efficiency and progress. Br J Radiol. 91(1090):20180307, 2018
                                      4. Park SH et al: CT colonography interpretation: how to maximize polyp detection and minimize overcalling. Abdom Radiol (NY). 43(3):539-53, 2018
                                      5. Pickhardt PJ: Imaging and screening for colorectal cancer with CT colonography. Radiol Clin North Am. 55(6):1183-96, 2017
                                      6. Pooler BD et al: CT Colonography Reporting and Data System (C-RADS): benchmark values from a clinical screening program. AJR Am J Roentgenol. 202(6):1232-7, 2014
                                      7. Yee J et al: Advances in CT colonography for colorectal cancer screening and diagnosis. J Cancer. 4(3):200-9, 2013
                                      8. Pickhardt PJ et al: Colorectal cancer: CT colonography and colonoscopy for detection--systematic review and meta-analysis. Radiology. 259(2):393-405, 2011
                                      9. Cappell MS: The water jet deformation sign: a novel provocative colonoscopic maneuver to help diagnose an inverted colonic diverticulum. South Med J. 102(3):295-8, 2009
                                      10. Nakajo M et al: Effect of clinicopathologic factors on visibility of colorectal polyps with FDG PET. AJR Am J Roentgenol. 192(3):754-60, 2009
                                      11. Pickhardt PJ et al: Colorectal cancer screening with CT colonography: key concepts regarding polyp prevalence, size, histology, morphology, and natural history. AJR Am J Roentgenol. 193(1):40-6, 2009
                                      12. Rex DK et al: Estimation of impact of American College of Radiology recommendations on CT colonography reporting for resection of high-risk adenoma findings. Am J Gastroenterol. 104(1):149-53, 2009
                                      13. Summers RM et al: Conspicuity of colorectal polyps at CT colonography: visual assessment, CAD performance, and the important role of polyp height. Acad Radiol. 16(1):4-14, 2009
                                      14. Waye JD: A balancing view: should large colon polyps be removed colonoscopically or surgically? Am J Gastroenterol. 104(2):275-6, 2009
                                      15. Johnson CD et al: Accuracy of CT colonography for detection of large adenomas and cancers. N Engl J Med. 2008 Sep 18;359(12):1207-17. Erratum in: N Engl J Med. 359(26):2853, 2008
                                      16. Gluecker TM et al: Characterization of lesions missed on interpretation of CT colonography using a 2D search method. AJR Am J Roentgenol. 182(4):881-9, 2004
                                      17. Laks S et al: Positional change in colon polyps at CT colonography. Radiology. 231(3):761-6, 2004
                                      18. Yee J et al: Colorectal neoplasia: performance characteristics of CT colonography for detection in 300 patients. Radiology. 219(3):685-92, 2001
                                      19. Levine MS et al: Diagnosis of colorectal neoplasms at double-contrast barium enema examination. Radiology. 216(1):11-8, 2000
                                      20. Macari M et al: Comparison of time-efficient CT colonography with two- and three-dimensional colonic evaluation for detecting colorectal polyps. AJR Am J Roentgenol. 174(6):1543-9, 2000
                                      Related Anatomy
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                                      Related Differential Diagnoses
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                                      References
                                      Tables

                                      Tables

                                      KEY FACTS

                                      • Terminology

                                        • Imaging

                                          • Pathology

                                            • Clinical Issues

                                              TERMINOLOGY

                                              • Definitions

                                                • Focal, space-occupying masses that arise from colonic mucosa and protrude into colonic lumen

                                              IMAGING

                                              • General Features

                                                • CT Findings

                                                  • Radiographic Findings

                                                    • Ultrasonographic Findings

                                                      • Imaging Recommendations

                                                        • Other Modality Findings

                                                          DIFFERENTIAL DIAGNOSIS

                                                            PATHOLOGY

                                                            • General Features

                                                              • Gross Pathologic & Surgical Features

                                                                • Microscopic Features

                                                                  CLINICAL ISSUES

                                                                  • Presentation

                                                                    • Demographics

                                                                      • Natural History & Prognosis

                                                                        • Treatment

                                                                          Selected References

                                                                          1. Spada C et al: Imaging alternatives to colonoscopy: CT colonography and colon capsule. European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastrointestinal and Abdominal Radiology (ESGAR) Guideline - Update 2020. Endoscopy. 52(12):1127-41, 2020
                                                                          2. Kim DH et al: Flat Serrated polyps at CT colonography: relevance, appearance, and optimizing interpretation. Radiographics. 38(1):60-74, 2018
                                                                          3. Obaro AE et al: Colon cancer screening with CT colonography: logistics, cost-effectiveness, efficiency and progress. Br J Radiol. 91(1090):20180307, 2018
                                                                          4. Park SH et al: CT colonography interpretation: how to maximize polyp detection and minimize overcalling. Abdom Radiol (NY). 43(3):539-53, 2018
                                                                          5. Pickhardt PJ: Imaging and screening for colorectal cancer with CT colonography. Radiol Clin North Am. 55(6):1183-96, 2017
                                                                          6. Pooler BD et al: CT Colonography Reporting and Data System (C-RADS): benchmark values from a clinical screening program. AJR Am J Roentgenol. 202(6):1232-7, 2014
                                                                          7. Yee J et al: Advances in CT colonography for colorectal cancer screening and diagnosis. J Cancer. 4(3):200-9, 2013
                                                                          8. Pickhardt PJ et al: Colorectal cancer: CT colonography and colonoscopy for detection--systematic review and meta-analysis. Radiology. 259(2):393-405, 2011
                                                                          9. Cappell MS: The water jet deformation sign: a novel provocative colonoscopic maneuver to help diagnose an inverted colonic diverticulum. South Med J. 102(3):295-8, 2009
                                                                          10. Nakajo M et al: Effect of clinicopathologic factors on visibility of colorectal polyps with FDG PET. AJR Am J Roentgenol. 192(3):754-60, 2009
                                                                          11. Pickhardt PJ et al: Colorectal cancer screening with CT colonography: key concepts regarding polyp prevalence, size, histology, morphology, and natural history. AJR Am J Roentgenol. 193(1):40-6, 2009
                                                                          12. Rex DK et al: Estimation of impact of American College of Radiology recommendations on CT colonography reporting for resection of high-risk adenoma findings. Am J Gastroenterol. 104(1):149-53, 2009
                                                                          13. Summers RM et al: Conspicuity of colorectal polyps at CT colonography: visual assessment, CAD performance, and the important role of polyp height. Acad Radiol. 16(1):4-14, 2009
                                                                          14. Waye JD: A balancing view: should large colon polyps be removed colonoscopically or surgically? Am J Gastroenterol. 104(2):275-6, 2009
                                                                          15. Johnson CD et al: Accuracy of CT colonography for detection of large adenomas and cancers. N Engl J Med. 2008 Sep 18;359(12):1207-17. Erratum in: N Engl J Med. 359(26):2853, 2008
                                                                          16. Gluecker TM et al: Characterization of lesions missed on interpretation of CT colonography using a 2D search method. AJR Am J Roentgenol. 182(4):881-9, 2004
                                                                          17. Laks S et al: Positional change in colon polyps at CT colonography. Radiology. 231(3):761-6, 2004
                                                                          18. Yee J et al: Colorectal neoplasia: performance characteristics of CT colonography for detection in 300 patients. Radiology. 219(3):685-92, 2001
                                                                          19. Levine MS et al: Diagnosis of colorectal neoplasms at double-contrast barium enema examination. Radiology. 216(1):11-8, 2000
                                                                          20. Macari M et al: Comparison of time-efficient CT colonography with two- and three-dimensional colonic evaluation for detecting colorectal polyps. AJR Am J Roentgenol. 174(6):1543-9, 2000