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Sphenoid Benign Fatty Lesion
C. Douglas Phillips, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Synonyms

              • Arrested pneumatization of sphenoid
            • Definitions

              • Well-corticated, fat-containing lesion of sphenoid; usually contiguous with sinus
              • Not fibroosseous lesion with internal matrix
              • Not hemangioma

            IMAGING

            • General Features

              • Imaging Recommendations

                • CT Findings

                  • MR Findings

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        CLINICAL ISSUES

                        • Presentation

                          • Demographics

                            • Natural History & Prognosis

                              • Treatment

                                DIAGNOSTIC CHECKLIST

                                • Image Interpretation Pearls

                                  Selected References

                                  1. Kuntzler S et al: Arrested pneumatization: witness of paranasal sinuses development? Eur Ann Otorhinolaryngol Head Neck Dis. 131(3):167-70, 2014
                                  2. Schmalfuss IM et al: Skull base: pseudolesion or true lesion? Eur Radiol. 18(6):1232-43, 2008
                                  3. Welker KM et al: Arrested pneumatization of the skull base: imaging characteristics. AJR Am J Roentgenol. 190(6):1691-6, 2008
                                  Related Anatomy
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                                  Related Differential Diagnoses
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                                  References
                                  Tables

                                  Tables

                                  KEY FACTS

                                  • Terminology

                                    • Imaging

                                      • Top Differential Diagnoses

                                        • Clinical Issues

                                          • Diagnostic Checklist

                                            TERMINOLOGY

                                            • Synonyms

                                              • Arrested pneumatization of sphenoid
                                            • Definitions

                                              • Well-corticated, fat-containing lesion of sphenoid; usually contiguous with sinus
                                              • Not fibroosseous lesion with internal matrix
                                              • Not hemangioma

                                            IMAGING

                                            • General Features

                                              • Imaging Recommendations

                                                • CT Findings

                                                  • MR Findings

                                                    DIFFERENTIAL DIAGNOSIS

                                                      PATHOLOGY

                                                      • General Features

                                                        CLINICAL ISSUES

                                                        • Presentation

                                                          • Demographics

                                                            • Natural History & Prognosis

                                                              • Treatment

                                                                DIAGNOSTIC CHECKLIST

                                                                • Image Interpretation Pearls

                                                                  Selected References

                                                                  1. Kuntzler S et al: Arrested pneumatization: witness of paranasal sinuses development? Eur Ann Otorhinolaryngol Head Neck Dis. 131(3):167-70, 2014
                                                                  2. Schmalfuss IM et al: Skull base: pseudolesion or true lesion? Eur Radiol. 18(6):1232-43, 2008
                                                                  3. Welker KM et al: Arrested pneumatization of the skull base: imaging characteristics. AJR Am J Roentgenol. 190(6):1691-6, 2008