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Appendiceal Mucocele
Sathi A. Sukumar, MBBS, FRCP (UK), FRCR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Definitions

              • Distension of appendiceal lumen as result of mucin accumulation
                • Macroscopic description and not pathologic diagnosis

            IMAGING

            • General Features

              • Ultrasonographic Findings

                • CT Findings

                  • MR Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Staging, Grading, & Classification

                            • Gross Pathologic & Surgical Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Natural History & Prognosis

                                    • Treatment

                                      DIAGNOSTIC CHECKLIST

                                      • Consider

                                        • Image Interpretation Pearls

                                          Selected References

                                          1. Attarde V et al: Sonographic appearance of a giant appendicular mucocele. J Clin Ultrasound. 39(5):290-2, 2011
                                          2. Caspi B et al: The onion skin sign: a specific sonographic marker of appendiceal mucocele. J Ultrasound Med. 23(1):117-21; quiz 122-3, 2004
                                          3. Wang H et al: Appendiceal mucocele: A diagnostic dilemma in differentiating malignant from benign lesions with CT. AJR Am J Roentgenol. 201(4):W590-5, 2013
                                          4. Pickhardt PJ et al: Primary neoplasms of the appendix: radiologic spectrum of disease with pathologic correlation. Radiographics. 23(3):645-62, 2003
                                          5. Pickhardt PJ et al: Primary neoplasms of the appendix manifesting as acute appendicitis: CT findings with pathologic comparison. Radiology. 224(3):775-81, 2002
                                          Related Anatomy
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                                          Related Differential Diagnoses
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                                          References
                                          Tables

                                          Tables

                                          KEY FACTS

                                          • Terminology

                                            • Imaging

                                              • Top Differential Diagnoses

                                                • Pathology

                                                  • Clinical Issues

                                                    TERMINOLOGY

                                                    • Definitions

                                                      • Distension of appendiceal lumen as result of mucin accumulation
                                                        • Macroscopic description and not pathologic diagnosis

                                                    IMAGING

                                                    • General Features

                                                      • Ultrasonographic Findings

                                                        • CT Findings

                                                          • MR Findings

                                                            • Imaging Recommendations

                                                              DIFFERENTIAL DIAGNOSIS

                                                                PATHOLOGY

                                                                • General Features

                                                                  • Staging, Grading, & Classification

                                                                    • Gross Pathologic & Surgical Features

                                                                      CLINICAL ISSUES

                                                                      • Presentation

                                                                        • Demographics

                                                                          • Natural History & Prognosis

                                                                            • Treatment

                                                                              DIAGNOSTIC CHECKLIST

                                                                              • Consider

                                                                                • Image Interpretation Pearls

                                                                                  Selected References

                                                                                  1. Attarde V et al: Sonographic appearance of a giant appendicular mucocele. J Clin Ultrasound. 39(5):290-2, 2011
                                                                                  2. Caspi B et al: The onion skin sign: a specific sonographic marker of appendiceal mucocele. J Ultrasound Med. 23(1):117-21; quiz 122-3, 2004
                                                                                  3. Wang H et al: Appendiceal mucocele: A diagnostic dilemma in differentiating malignant from benign lesions with CT. AJR Am J Roentgenol. 201(4):W590-5, 2013
                                                                                  4. Pickhardt PJ et al: Primary neoplasms of the appendix: radiologic spectrum of disease with pathologic correlation. Radiographics. 23(3):645-62, 2003
                                                                                  5. Pickhardt PJ et al: Primary neoplasms of the appendix manifesting as acute appendicitis: CT findings with pathologic comparison. Radiology. 224(3):775-81, 2002