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Masticator Space Abscess
Bronwyn E. Hamilton, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Definitions

              • Masticator space (MS) abscess: Abscess within MS usually arises from molar tooth (odontogenic) infection or following dental procedure

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Nuclear Medicine Findings

                    • Dental X-Ray or Panorex

                      • Imaging Recommendations

                        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. Kos M: Incidence and risk predictors for osteonecrosis of the jaw in cancer patients treated with intravenous bisphosphonates. Arch Med Sci. 11(2):319-24, 2015
                                            2. Lin RH et al: Correlation between imaging characteristics and microbiology in patients with deep neck infections: a retrospective review of one hundred sixty-one cases. Surg Infect (Larchmt). 15(6):794-9, 2014
                                            3. Sakamoto H et al: A case of brain abscess extended from deep fascial space infection. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 108(3):e21-5, 2009
                                            4. Hasegawa T et al: Two cases of masticator space abscess initially diagnosed as temporomandibular joint disorder. Kobe J Med Sci. 54(3):E163-8, 2008
                                            5. Schuknecht B et al: Masticator space abscess derived from odontogenic infection: imaging manifestation and pathways of extension depicted by CT and MR in 30 patients. Eur Radiol. 18(9):1972-9, 2008
                                            6. Phal PM et al: Imaging findings of bisphosphonate-associated osteonecrosis of the jaws. AJNR Am J Neuroradiol. 28(6):1139-45, 2007
                                            7. Jones KC et al: Chronic submasseteric abscess: anatomic, radiologic, and pathologic features. AJNR Am J Neuroradiol. 24(6):1159-63, 2003
                                            8. McClay JE et al: Intravenous antibiotic therapy for deep neck abscesses defined by computed tomography. Arch Otolaryngol Head Neck Surg. 129(11):1207-12, 2003
                                            9. Bratton TA et al: Management of complex multi-space odontogenic infections. J Tenn Dent Assoc. 82(3):39-47, 2002
                                            10. Plaza Mayor G et al: Is conservative treatment of deep neck space infections appropriate? Head Neck. 23(2):126-33, 2001
                                            11. Yuan WH et al: Image evaluation of suprazygomatic masticator space lesions. Kaohsiung J Med Sci. 17(3):139-49, 2001
                                            12. Sivarajasingam V et al: Ultrasound-guided needle aspiration of lateral masticator space abscess. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 88(5):616-9, 1999
                                            13. Yonetsu K et al: Deep facial infections of odontogenic origin: CT assessment of pathways of space involvement. AJNR Am J Neuroradiol. 19(1):123-8, 1998
                                            14. Ginsberg LE: Inflammatory and infectious lesions of the neck. Semin Ultrasound CT MR. 18(3):205-19, 1997
                                            15. Kim HJ et al: Odontogenic versus nonodontogenic deep neck space infections: CT manifestations. J Comput Assist Tomogr. 21(2):202-8, 1997
                                            16. Chong VF et al: Pictorial review: radiology of the masticator space. Clin Radiol. 51(7):457-65, 1996
                                            17. Tryhus MR et al: The normal and diseased masticator space. Semin Ultrasound CT MR. 11(6):476-85, 1990
                                            18. Curtin HD: Separation of the masticator space from the parapharyngeal space. Radiology. 163(1):195-204, 1987
                                            19. Doxey GP et al: The masticator space: the influence of CT scanning on therapy. Laryngoscope. 95(12):1444-7, 1985
                                            20. Hardin CW et al: Infection and tumor of the masticator space: CT evaluation. Radiology. 157(2):413-7, 1985
                                            21. Nyberg DA et al: Computed tomography of cervical infections. J Comput Assist Tomogr. 9(2):288-96, 1985
                                            22. Braun IF et al: Computed tomography of the buccomasseteric region: 2. Pathology. AJNR Am J Neuroradiol. 5(5):611-6, 1984
                                            23. Calcaterra VE et al: Infections of the masseteric space in children. Otolaryngol Head Neck Surg. 92(1):118-22, 1984
                                            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

                                                      • Definitions

                                                        • Masticator space (MS) abscess: Abscess within MS usually arises from molar tooth (odontogenic) infection or following dental procedure

                                                      IMAGING

                                                      • General Features

                                                        • CT Findings

                                                          • MR Findings

                                                            • Nuclear Medicine Findings

                                                              • Dental X-Ray or Panorex

                                                                • Imaging Recommendations

                                                                  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. Kos M: Incidence and risk predictors for osteonecrosis of the jaw in cancer patients treated with intravenous bisphosphonates. Arch Med Sci. 11(2):319-24, 2015
                                                                                      2. Lin RH et al: Correlation between imaging characteristics and microbiology in patients with deep neck infections: a retrospective review of one hundred sixty-one cases. Surg Infect (Larchmt). 15(6):794-9, 2014
                                                                                      3. Sakamoto H et al: A case of brain abscess extended from deep fascial space infection. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 108(3):e21-5, 2009
                                                                                      4. Hasegawa T et al: Two cases of masticator space abscess initially diagnosed as temporomandibular joint disorder. Kobe J Med Sci. 54(3):E163-8, 2008
                                                                                      5. Schuknecht B et al: Masticator space abscess derived from odontogenic infection: imaging manifestation and pathways of extension depicted by CT and MR in 30 patients. Eur Radiol. 18(9):1972-9, 2008
                                                                                      6. Phal PM et al: Imaging findings of bisphosphonate-associated osteonecrosis of the jaws. AJNR Am J Neuroradiol. 28(6):1139-45, 2007
                                                                                      7. Jones KC et al: Chronic submasseteric abscess: anatomic, radiologic, and pathologic features. AJNR Am J Neuroradiol. 24(6):1159-63, 2003
                                                                                      8. McClay JE et al: Intravenous antibiotic therapy for deep neck abscesses defined by computed tomography. Arch Otolaryngol Head Neck Surg. 129(11):1207-12, 2003
                                                                                      9. Bratton TA et al: Management of complex multi-space odontogenic infections. J Tenn Dent Assoc. 82(3):39-47, 2002
                                                                                      10. Plaza Mayor G et al: Is conservative treatment of deep neck space infections appropriate? Head Neck. 23(2):126-33, 2001
                                                                                      11. Yuan WH et al: Image evaluation of suprazygomatic masticator space lesions. Kaohsiung J Med Sci. 17(3):139-49, 2001
                                                                                      12. Sivarajasingam V et al: Ultrasound-guided needle aspiration of lateral masticator space abscess. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 88(5):616-9, 1999
                                                                                      13. Yonetsu K et al: Deep facial infections of odontogenic origin: CT assessment of pathways of space involvement. AJNR Am J Neuroradiol. 19(1):123-8, 1998
                                                                                      14. Ginsberg LE: Inflammatory and infectious lesions of the neck. Semin Ultrasound CT MR. 18(3):205-19, 1997
                                                                                      15. Kim HJ et al: Odontogenic versus nonodontogenic deep neck space infections: CT manifestations. J Comput Assist Tomogr. 21(2):202-8, 1997
                                                                                      16. Chong VF et al: Pictorial review: radiology of the masticator space. Clin Radiol. 51(7):457-65, 1996
                                                                                      17. Tryhus MR et al: The normal and diseased masticator space. Semin Ultrasound CT MR. 11(6):476-85, 1990
                                                                                      18. Curtin HD: Separation of the masticator space from the parapharyngeal space. Radiology. 163(1):195-204, 1987
                                                                                      19. Doxey GP et al: The masticator space: the influence of CT scanning on therapy. Laryngoscope. 95(12):1444-7, 1985
                                                                                      20. Hardin CW et al: Infection and tumor of the masticator space: CT evaluation. Radiology. 157(2):413-7, 1985
                                                                                      21. Nyberg DA et al: Computed tomography of cervical infections. J Comput Assist Tomogr. 9(2):288-96, 1985
                                                                                      22. Braun IF et al: Computed tomography of the buccomasseteric region: 2. Pathology. AJNR Am J Neuroradiol. 5(5):611-6, 1984
                                                                                      23. Calcaterra VE et al: Infections of the masseteric space in children. Otolaryngol Head Neck Surg. 92(1):118-22, 1984