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Adrenal Collision Tumor
Mitchell Tublin, MD; Michael P. Federle, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Diagnostic Checklist

          TERMINOLOGY

          • Abbreviations

            • Adrenal collision tumor (ACT)
          • Definitions

            • Coexistence of 2 contiguous but histologically different tumors within same adrenal gland
            • Not a composition tumor (i.e., tumor with intermixed, differing cell types)

          IMAGING

          • General Features

            • CT Findings

              • MR Findings

                • Nuclear Medicine Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Gross Pathologic & Surgical Features

                          • Microscopic Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  DIAGNOSTIC CHECKLIST

                                  • Consider

                                    Selected References

                                    1. Untch BR et al: Imaging and management of a small cell lung cancer metastasis/adrenal adenoma collision tumor: a case report and review of the literature. World J Surg Oncol. 12:45, 2014
                                    2. Katabathina VS et al: Adrenal collision tumors and their mimics: multimodality imaging findings. Cancer Imaging. 13(4):602-10, 2013
                                    3. Anderson SB et al: Adrenal collision tumor diagnosed by F-18 fluorodeoxyglucose PET/CT. Clin Nucl Med. 35(6):414-7, 2010
                                    4. Blake MA et al: Collision adrenal tumors on PET/CT. AJR Am J Roentgenol. 183(3):864-5, 2004
                                    5. Otal P et al: Imaging features of uncommon adrenal masses with histopathologic correlation. Radiographics. 19(3):569-81, 1999
                                    6. Schwartz LH et al: Collision tumors of the adrenal gland: demonstration and characterization at MR imaging. Radiology. 201(3):757-60, 1996
                                    Related Anatomy
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                                    Related Differential Diagnoses
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                                    References
                                    Tables

                                    Tables

                                    KEY FACTS

                                    • Terminology

                                      • Imaging

                                        • Top Differential Diagnoses

                                          • Diagnostic Checklist

                                            TERMINOLOGY

                                            • Abbreviations

                                              • Adrenal collision tumor (ACT)
                                            • Definitions

                                              • Coexistence of 2 contiguous but histologically different tumors within same adrenal gland
                                              • Not a composition tumor (i.e., tumor with intermixed, differing cell types)

                                            IMAGING

                                            • General Features

                                              • CT Findings

                                                • MR Findings

                                                  • Nuclear Medicine Findings

                                                    • Imaging Recommendations

                                                      DIFFERENTIAL DIAGNOSIS

                                                        PATHOLOGY

                                                        • General Features

                                                          • Gross Pathologic & Surgical Features

                                                            • Microscopic Features

                                                              CLINICAL ISSUES

                                                              • Presentation

                                                                • Demographics

                                                                  • Natural History & Prognosis

                                                                    DIAGNOSTIC CHECKLIST

                                                                    • Consider

                                                                      Selected References

                                                                      1. Untch BR et al: Imaging and management of a small cell lung cancer metastasis/adrenal adenoma collision tumor: a case report and review of the literature. World J Surg Oncol. 12:45, 2014
                                                                      2. Katabathina VS et al: Adrenal collision tumors and their mimics: multimodality imaging findings. Cancer Imaging. 13(4):602-10, 2013
                                                                      3. Anderson SB et al: Adrenal collision tumor diagnosed by F-18 fluorodeoxyglucose PET/CT. Clin Nucl Med. 35(6):414-7, 2010
                                                                      4. Blake MA et al: Collision adrenal tumors on PET/CT. AJR Am J Roentgenol. 183(3):864-5, 2004
                                                                      5. Otal P et al: Imaging features of uncommon adrenal masses with histopathologic correlation. Radiographics. 19(3):569-81, 1999
                                                                      6. Schwartz LH et al: Collision tumors of the adrenal gland: demonstration and characterization at MR imaging. Radiology. 201(3):757-60, 1996