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Leptomeningeal Cyst ("Growing Fracture")
Anne G. Osborn, MD, FACR; Kevin R. Moore, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Definitions

                • Enlarging calvarial fracture adjacent to post-traumatic encephalomalacia
                • Term "leptomeningeal cyst" is misnomer

              IMAGING

              • General Features

                • Imaging Recommendations

                  • Radiographic Findings

                    • CT Findings

                      • MR Findings

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • General Features

                            • Gross Pathologic & Surgical Features

                              • Microscopic Features

                                CLINICAL ISSUES

                                • Presentation

                                  • Demographics

                                    • Natural History & Prognosis

                                      • Treatment

                                        DIAGNOSTIC CHECKLIST

                                        • Consider

                                          • Image Interpretation Pearls

                                            Selected References

                                            1. Collins J et al: Growing skull fracture of midline posterior cranial vault. J Pediatr. 166(2):494, 2015
                                            2. Hollon T et al: Skull fracture mimicking eosinophilic granuloma. Childs Nerv Syst. ePub, 2015
                                            3. Prasad GL et al: Surgical results of growing skull fractures in children: a single centre study of 43 cases. Childs Nerv Syst. 31(2):269-77, 2015
                                            4. Drapkin AJ: Growing skull fracture: a posttraumatic neosuture. Childs Nerv Syst. 22(4):394-7, 2006
                                            5. Glass RB et al: The infant skull: a vault of information. Radiographics. 24(2):507-22, 2004
                                            6. Menk├╝ A et al: Is skull fracture necessary for developing an intradiploic pseudomeningocele as a complication of head injury in adulthood? Acta Neurochir (Wien). 146(6):623-7; discussion 627, 2004
                                            7. Ersahin Y et al: Growing skull fractures (craniocerebral erosion). Neurosurg Rev. 23(3):139-44, 2000
                                            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

                                                      • Diagnostic Checklist

                                                        TERMINOLOGY

                                                        • Definitions

                                                          • Enlarging calvarial fracture adjacent to post-traumatic encephalomalacia
                                                          • Term "leptomeningeal cyst" is misnomer

                                                        IMAGING

                                                        • General Features

                                                          • Imaging Recommendations

                                                            • Radiographic Findings

                                                              • CT Findings

                                                                • MR Findings

                                                                  DIFFERENTIAL DIAGNOSIS

                                                                    PATHOLOGY

                                                                    • General Features

                                                                      • Gross Pathologic & Surgical Features

                                                                        • Microscopic Features

                                                                          CLINICAL ISSUES

                                                                          • Presentation

                                                                            • Demographics

                                                                              • Natural History & Prognosis

                                                                                • Treatment

                                                                                  DIAGNOSTIC CHECKLIST

                                                                                  • Consider

                                                                                    • Image Interpretation Pearls

                                                                                      Selected References

                                                                                      1. Collins J et al: Growing skull fracture of midline posterior cranial vault. J Pediatr. 166(2):494, 2015
                                                                                      2. Hollon T et al: Skull fracture mimicking eosinophilic granuloma. Childs Nerv Syst. ePub, 2015
                                                                                      3. Prasad GL et al: Surgical results of growing skull fractures in children: a single centre study of 43 cases. Childs Nerv Syst. 31(2):269-77, 2015
                                                                                      4. Drapkin AJ: Growing skull fracture: a posttraumatic neosuture. Childs Nerv Syst. 22(4):394-7, 2006
                                                                                      5. Glass RB et al: The infant skull: a vault of information. Radiographics. 24(2):507-22, 2004
                                                                                      6. Menk├╝ A et al: Is skull fracture necessary for developing an intradiploic pseudomeningocele as a complication of head injury in adulthood? Acta Neurochir (Wien). 146(6):623-7; discussion 627, 2004
                                                                                      7. Ersahin Y et al: Growing skull fractures (craniocerebral erosion). Neurosurg Rev. 23(3):139-44, 2000