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Median Neuropathy
Jeffrey S. Ross, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Synonyms

                • Pronator syndrome: Nerve entrapment at pronator teres
                • Carpal tunnel syndrome: Nerve entrapment at carpal tunnel
              • Definitions

                • Carpal tunnel: Fibroosseous tunnel at volar aspect of wrist
                  • Contains median nerve and flexor tendons

              IMAGING

              • General Features

                • MR Findings

                  • Other Modality Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              • Relevant Anatomy

                                CLINICAL ISSUES

                                • Presentation

                                  • Demographics

                                    • Treatment

                                      DIAGNOSTIC CHECKLIST

                                      • Consider

                                        • Image Interpretation Pearls

                                          Selected References

                                          1. Basta I et al: Diagnostic value of combined magnetic resonance imaging examination of brachial plexus and electrophysiological studies in multifocal motor neuropathy. Vojnosanit Pregl. 71(8):723-9, 2014
                                          2. Momose T et al: Structural changes of the carpal tunnel, median nerve and flexor tendons in MRI before and after endoscopic carpal tunnel release. Hand Surg. 19(2):193-8, 2014
                                          3. Senger JL et al: Fibrolipomatous hamartoma of the median nerve: A cause of acute bilateral carpal tunnel syndrome in a three-year-old child: A case report and comprehensive literature review. Can J Plast Surg. 22(3):201-6, 2014
                                          4. Campagna R et al: MRI assessment of recurrent carpal tunnel syndrome after open surgical release of the median nerve. AJR Am J Roentgenol. 193(3):644-50, 2009
                                          5. Pierre-Jerome C et al: MRI of the median nerve and median artery in the carpal tunnel: prevalence of their anatomical variations and clinical significance. Surg Radiol Anat. Epub ahead of print, 2009
                                          6. Hochman MG et al: Nerves in a pinch: imaging of nerve compression syndromes. Radiol Clin North Am. 42(1):221-45, 2004
                                          7. Witt JC et al: Neurologic disorders masquerading as carpal tunnel syndrome: 12 cases of failed carpal tunnel release. Mayo Clin Proc. 75(4):409-13, 2000
                                          8. England JD: Entrapment neuropathies. Curr Opin Neurol. 12(5):597-602, 1999
                                          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

                                                      • Synonyms

                                                        • Pronator syndrome: Nerve entrapment at pronator teres
                                                        • Carpal tunnel syndrome: Nerve entrapment at carpal tunnel
                                                      • Definitions

                                                        • Carpal tunnel: Fibroosseous tunnel at volar aspect of wrist
                                                          • Contains median nerve and flexor tendons

                                                      IMAGING

                                                      • General Features

                                                        • MR Findings

                                                          • Other Modality Findings

                                                            • Imaging Recommendations

                                                              DIFFERENTIAL DIAGNOSIS

                                                                PATHOLOGY

                                                                • General Features

                                                                  • Gross Pathologic & Surgical Features

                                                                    • Microscopic Features

                                                                      • Relevant Anatomy

                                                                        CLINICAL ISSUES

                                                                        • Presentation

                                                                          • Demographics

                                                                            • Treatment

                                                                              DIAGNOSTIC CHECKLIST

                                                                              • Consider

                                                                                • Image Interpretation Pearls

                                                                                  Selected References

                                                                                  1. Basta I et al: Diagnostic value of combined magnetic resonance imaging examination of brachial plexus and electrophysiological studies in multifocal motor neuropathy. Vojnosanit Pregl. 71(8):723-9, 2014
                                                                                  2. Momose T et al: Structural changes of the carpal tunnel, median nerve and flexor tendons in MRI before and after endoscopic carpal tunnel release. Hand Surg. 19(2):193-8, 2014
                                                                                  3. Senger JL et al: Fibrolipomatous hamartoma of the median nerve: A cause of acute bilateral carpal tunnel syndrome in a three-year-old child: A case report and comprehensive literature review. Can J Plast Surg. 22(3):201-6, 2014
                                                                                  4. Campagna R et al: MRI assessment of recurrent carpal tunnel syndrome after open surgical release of the median nerve. AJR Am J Roentgenol. 193(3):644-50, 2009
                                                                                  5. Pierre-Jerome C et al: MRI of the median nerve and median artery in the carpal tunnel: prevalence of their anatomical variations and clinical significance. Surg Radiol Anat. Epub ahead of print, 2009
                                                                                  6. Hochman MG et al: Nerves in a pinch: imaging of nerve compression syndromes. Radiol Clin North Am. 42(1):221-45, 2004
                                                                                  7. Witt JC et al: Neurologic disorders masquerading as carpal tunnel syndrome: 12 cases of failed carpal tunnel release. Mayo Clin Proc. 75(4):409-13, 2000
                                                                                  8. England JD: Entrapment neuropathies. Curr Opin Neurol. 12(5):597-602, 1999