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Accessory Spleen
Siva P. Raman, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Synonyms

              • Splenule, splenunculus
            • Definitions

              • Benign ectopic splenic tissue of congenital origin

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Ultrasonographic Findings

                    • Nuclear Medicine Findings

                      • Imaging Recommendations

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • General Features

                            • Gross Pathologic & Surgical Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      • Image Interpretation Pearls

                                        Selected References

                                        1. Coquia SF et al: Intrapancreatic accessory spleen: possibilities of computed tomography in differentiation from nonfunctioning pancreatic neuroendocrine tumor. J Comput Assist Tomogr. ePub, 2014
                                        2. Kang BK et al: Diffusion-weighted MRI: usefulness for differentiating intrapancreatic accessory spleen and small hypervascular neuroendocrine tumor of the pancreas. Acta Radiol. ePub, 2013
                                        3. Kawamoto S et al: Intrapancreatic accessory spleen: CT appearance and differential diagnosis. Abdom Imaging. 37(5):812-27, 2012
                                        4. Kim TH et al: Education and imaging. Hepatobiliary and pancreatic: torsion of an accessory spleen. J Gastroenterol Hepatol. 24(7):1308, 2009
                                        5. Ronit G et al: Torsion of an accessory spleen. Abdom Imaging. Epub ahead of print, 2006
                                        6. Mortelé KJ et al: CT features of the accessory spleen. AJR Am J Roentgenol. 183(6):1653-7, 2004
                                        7. Harris GN et al: Accessory spleen causing a mass in the tail of the pancreas: MR imaging findings. AJR Am J Roentgenol. 163(5):1120-1, 1994
                                        8. Freeman JL et al: CT of congenital and acquired abnormalities of the spleen. Radiographics. 13(3):597-610, 1993
                                        9. Ambriz P et al: Accessory spleen compromising response to splenectomy for idiopathic thrombocytopenic purpura. Radiology. 155(3):793-6, 1985
                                        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

                                                  • Synonyms

                                                    • Splenule, splenunculus
                                                  • Definitions

                                                    • Benign ectopic splenic tissue of congenital origin

                                                  IMAGING

                                                  • General Features

                                                    • CT Findings

                                                      • MR Findings

                                                        • Ultrasonographic Findings

                                                          • Nuclear Medicine Findings

                                                            • Imaging Recommendations

                                                              DIFFERENTIAL DIAGNOSIS

                                                                PATHOLOGY

                                                                • General Features

                                                                  • Gross Pathologic & Surgical Features

                                                                    CLINICAL ISSUES

                                                                    • Presentation

                                                                      • Demographics

                                                                        • Treatment

                                                                          DIAGNOSTIC CHECKLIST

                                                                          • Consider

                                                                            • Image Interpretation Pearls

                                                                              Selected References

                                                                              1. Coquia SF et al: Intrapancreatic accessory spleen: possibilities of computed tomography in differentiation from nonfunctioning pancreatic neuroendocrine tumor. J Comput Assist Tomogr. ePub, 2014
                                                                              2. Kang BK et al: Diffusion-weighted MRI: usefulness for differentiating intrapancreatic accessory spleen and small hypervascular neuroendocrine tumor of the pancreas. Acta Radiol. ePub, 2013
                                                                              3. Kawamoto S et al: Intrapancreatic accessory spleen: CT appearance and differential diagnosis. Abdom Imaging. 37(5):812-27, 2012
                                                                              4. Kim TH et al: Education and imaging. Hepatobiliary and pancreatic: torsion of an accessory spleen. J Gastroenterol Hepatol. 24(7):1308, 2009
                                                                              5. Ronit G et al: Torsion of an accessory spleen. Abdom Imaging. Epub ahead of print, 2006
                                                                              6. Mortelé KJ et al: CT features of the accessory spleen. AJR Am J Roentgenol. 183(6):1653-7, 2004
                                                                              7. Harris GN et al: Accessory spleen causing a mass in the tail of the pancreas: MR imaging findings. AJR Am J Roentgenol. 163(5):1120-1, 1994
                                                                              8. Freeman JL et al: CT of congenital and acquired abnormalities of the spleen. Radiographics. 13(3):597-610, 1993
                                                                              9. Ambriz P et al: Accessory spleen compromising response to splenectomy for idiopathic thrombocytopenic purpura. Radiology. 155(3):793-6, 1985