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Bennett Lesion
Michael J. Tuite, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Synonyms

              • Posterior glenoid exostosis, thrower exostosis
            • Definitions

              • Ossification at glenoid attachment of posterior band inferior glenohumeral ligament (PBIGL)

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • MR Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Staging, Grading, & Classification

                            • Gross Pathologic & Surgical Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      Selected References

                                      1. Pohlgeers KM et al: Infraspinatus atrophy in a volleyball player: a case of a bennett lesion causing nerve impingement. Curr Sports Med Rep. 13(6):358-60, 2014
                                      2. Ouellette H et al: Spectrum of shoulder injuries in the baseball pitcher. Skeletal Radiol. 37(6):491-8, 2008
                                      3. Nakagawa S et al: Superior Bennett lesion: a bone fragment at the posterosuperior glenoid rim in 5 athletes. Arthroscopy. 23(10):1135, 2007
                                      4. Nakagawa S et al: Posterior shoulder pain in throwing athletes with a Bennett lesion: factors that influence throwing pain. J Shoulder Elbow Surg. 15(1):72-7, 2006
                                      5. Wright RW et al: Prevalence of the Bennett lesion of the shoulder in major league pitchers. Am J Sports Med. 32(1):121-4, 2004
                                      6. Yoneda M et al: Arthroscopic removal of symptomatic Bennett lesions in the shoulders of baseball players: arthroscopic Bennett-plasty. Am J Sports Med. 30(5):728-36, 2002
                                      7. De Maeseneer M et al: The Bennett lesion of the shoulder. J Comput Assist Tomogr. 22(1):31-4, 1998
                                      8. Ferrari JD et al: Posterior ossification of the shoulder: the Bennett lesion. Etiology, diagnosis, and treatment. Am J Sports Med. 22(2):171-5; discussion 175-6, 1994
                                      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

                                                • Synonyms

                                                  • Posterior glenoid exostosis, thrower exostosis
                                                • Definitions

                                                  • Ossification at glenoid attachment of posterior band inferior glenohumeral ligament (PBIGL)

                                                IMAGING

                                                • General Features

                                                  • Radiographic Findings

                                                    • CT Findings

                                                      • MR Findings

                                                        • Imaging Recommendations

                                                          DIFFERENTIAL DIAGNOSIS

                                                            PATHOLOGY

                                                            • General Features

                                                              • Staging, Grading, & Classification

                                                                • Gross Pathologic & Surgical Features

                                                                  CLINICAL ISSUES

                                                                  • Presentation

                                                                    • Demographics

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Consider

                                                                          Selected References

                                                                          1. Pohlgeers KM et al: Infraspinatus atrophy in a volleyball player: a case of a bennett lesion causing nerve impingement. Curr Sports Med Rep. 13(6):358-60, 2014
                                                                          2. Ouellette H et al: Spectrum of shoulder injuries in the baseball pitcher. Skeletal Radiol. 37(6):491-8, 2008
                                                                          3. Nakagawa S et al: Superior Bennett lesion: a bone fragment at the posterosuperior glenoid rim in 5 athletes. Arthroscopy. 23(10):1135, 2007
                                                                          4. Nakagawa S et al: Posterior shoulder pain in throwing athletes with a Bennett lesion: factors that influence throwing pain. J Shoulder Elbow Surg. 15(1):72-7, 2006
                                                                          5. Wright RW et al: Prevalence of the Bennett lesion of the shoulder in major league pitchers. Am J Sports Med. 32(1):121-4, 2004
                                                                          6. Yoneda M et al: Arthroscopic removal of symptomatic Bennett lesions in the shoulders of baseball players: arthroscopic Bennett-plasty. Am J Sports Med. 30(5):728-36, 2002
                                                                          7. De Maeseneer M et al: The Bennett lesion of the shoulder. J Comput Assist Tomogr. 22(1):31-4, 1998
                                                                          8. Ferrari JD et al: Posterior ossification of the shoulder: the Bennett lesion. Etiology, diagnosis, and treatment. Am J Sports Med. 22(2):171-5; discussion 175-6, 1994