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Convexal Subarachnoid Hemorrhage
Anne G. Osborn, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Abbreviations

              • Convexal subarachnoid hemorrhage (cSAH)
            • Definitions

              • Unique type of subarachnoid hemorrhage (SAH)
                • SAH localized to sulci over top ("convexity") of brain
                • Spares basal, perimesencephalic cisterns!

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Angiographic Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          CLINICAL ISSUES

                          • Presentation

                            • Demographics

                              • Natural History & Prognosis

                                DIAGNOSTIC CHECKLIST

                                • Consider

                                  • Image Interpretation Pearls

                                    Selected References

                                    1. Introna A et al: Convexal subarachnoid hemorrhage and acute ischemic stroke: a border zone matter? Neurol Sci. 40(7):1419-24, 2019
                                    2. Yost M et al: Incidence of convexal subarachnoid hemorrhage in the elderly: the Mayo Clinic study of aging. J Stroke Cerebrovasc Dis. 28(12):104451, 2019
                                    3. Beitzke M et al: Acute diffusion-weighted imaging lesions in cerebral amyloid angiopathy-related convexal subarachnoid hemorrhage. J Cereb Blood Flow Metab. 38(2):225-9, 2018
                                    4. Calviere L et al: Patterns of convexal subarachnoid haemorrhage: clinical, radiological and outcome differences between cerebral amyloid angiopathy and other causes. J Neurol. 265(1):204-10, 2018
                                    5. Marder CP et al: Subarachnoid hemorrhage: beyond aneurysms. AJR Am J Roentgenol. 202(1):25-37, 2014
                                    6. Rico M et al: Headache as a crucial symptom in the etiology of convexal subarachnoid hemorrhage. Headache. 54(3):545-50, 2014
                                    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

                                              • Abbreviations

                                                • Convexal subarachnoid hemorrhage (cSAH)
                                              • Definitions

                                                • Unique type of subarachnoid hemorrhage (SAH)
                                                  • SAH localized to sulci over top ("convexity") of brain
                                                  • Spares basal, perimesencephalic cisterns!

                                              IMAGING

                                              • General Features

                                                • CT Findings

                                                  • MR Findings

                                                    • Angiographic Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            CLINICAL ISSUES

                                                            • Presentation

                                                              • Demographics

                                                                • Natural History & Prognosis

                                                                  DIAGNOSTIC CHECKLIST

                                                                  • Consider

                                                                    • Image Interpretation Pearls

                                                                      Selected References

                                                                      1. Introna A et al: Convexal subarachnoid hemorrhage and acute ischemic stroke: a border zone matter? Neurol Sci. 40(7):1419-24, 2019
                                                                      2. Yost M et al: Incidence of convexal subarachnoid hemorrhage in the elderly: the Mayo Clinic study of aging. J Stroke Cerebrovasc Dis. 28(12):104451, 2019
                                                                      3. Beitzke M et al: Acute diffusion-weighted imaging lesions in cerebral amyloid angiopathy-related convexal subarachnoid hemorrhage. J Cereb Blood Flow Metab. 38(2):225-9, 2018
                                                                      4. Calviere L et al: Patterns of convexal subarachnoid haemorrhage: clinical, radiological and outcome differences between cerebral amyloid angiopathy and other causes. J Neurol. 265(1):204-10, 2018
                                                                      5. Marder CP et al: Subarachnoid hemorrhage: beyond aneurysms. AJR Am J Roentgenol. 202(1):25-37, 2014
                                                                      6. Rico M et al: Headache as a crucial symptom in the etiology of convexal subarachnoid hemorrhage. Headache. 54(3):545-50, 2014