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Ameloblastoma
Kristine M. Mosier, DMD, PhD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Synonyms

              • Adamantoblastoma, adamantinoma (old, nonspecific terms; no longer used)
            • Definitions

              • Locally aggressive, benign neoplasm arising from mandibular or maxillary odontogenic epithelium

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • MR Findings

                    • 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

                                          • Reporting Tips

                                            Selected References

                                            1. Fujita M et al: Diagnostic value of MRI for odontogenic tumours. Dentomaxillofac Radiol. 42(5):20120265, 2013
                                            2. Srinivasan K et al: Diffusion-weighted imaging in the evaluation of odontogenic cysts and tumours. Br J Radiol. 85(1018):e864-70, 2012
                                            3. Ariji Y et al: Imaging features contributing to the diagnosis of ameloblastomas and keratocystic odontogenic tumours: logistic regression analysis. Dentomaxillofac Radiol. 40(3):133-40, 2011
                                            4. Hisatomi M et al: Diagnostic value of dynamic contrast-enhanced MRI for unilocular cystic-type ameloblastomas with homogeneously bright high signal intensity on T2-weighted or STIR MR images. Oral Oncol. 47(2):147-52, 2011
                                            5. Sumi M et al: Diffusion-weighted MR imaging of ameloblastomas and keratocystic odontogenic tumors: differentiation by apparent diffusion coefficients of cystic lesions. AJNR Am J Neuroradiol. 29(10):1897-901, 2008
                                            6. Asaumi J et al: Application of dynamic MRI to differentiating odontogenic myxomas from ameloblastomas. Eur J Radiol. 43(1):37-41, 2002
                                            7. Hayashi K et al: Dynamic multislice helical CT of ameloblastoma and odontogenic keratocyst: correlation between contrast enhancement and angiogenesis. J Comput Assist Tomogr. 26(6):922-6, 2002
                                            8. Mosier KM: Lesions of the Jaw. Semin Ultrasound CT MR. 36(5):444-50, 2015
                                            9. Mosier KM: Magnetic resonance imaging of the maxilla and mandible: signal characteristics and features in the differential diagnosis of common lesions. Top Magn Reson Imaging. 24(1):23-37, 2015
                                            10. Weissman JL et al: Ameloblastoma of the maxilla: CT and MR appearance. AJNR Am J Neuroradiol. 14(1):223-6, 1993
                                            11. Navarro CM et al: Maxillary unicystic ameloblastoma. Dentomaxillofac Radiol. 33(1):60-2, 2004
                                            12. Thosaporn W et al: A comparative study of epithelial cell proliferation between the odontogenic keratocyst, orthokeratinized odontogenic cyst, dentigerous cyst, and ameloblastoma. Oral Dis. 10(1):22-6, 2004
                                            13. Wakoh M et al: Follicular/desmoplastic hybrid ameloblastoma with radiographic features of concomitant fibro-osseous and solitary cystic lesions. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 94(6):774-80, 2002
                                            14. Gupta V et al: Evaluation of panoramic radiography and axial computed tomography in cases of ameloblastoma and central giant cell granuloma of mandible. Indian J Dent Res. 12(4):200-4, 2001
                                            15. van Rensburg LJ et al: Hemangiomatous ameloblastoma: Clinical, radiologic, and pathologic features. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 91(3):374-80, 2001
                                            16. Hughes CA et al: Giant ameloblastoma: report of an extreme case and a description of its treatment. Ear Nose Throat J. 78(8):568, 570-2, 574, 1999
                                            17. Kawai T et al: Diagnostic imaging in two cases of recurrent maxillary ameloblastoma: comparative evaluation of plain radiographs, CT and MR images. Br J Oral Maxillofac Surg. 36(4):304-10, 1998
                                            18. Altini M et al: Three-dimensional computed tomography reconstruction in treatment planning for large ameloblastoma. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 81(5):619-22, 1996
                                            19. Thompson IO et al: Desmoplastic ameloblastoma: correlative histopathology, radiology and CT-MR imaging. J Oral Pathol Med. 25(7):405-10, 1996
                                            20. Reichart PA et al: Ameloblastoma: biological profile of 3677 cases. Eur J Cancer B Oral Oncol. 31B(2):86-99, 1995
                                            21. Shibuya H et al: The use of CT and scintigraphy in diagnosing a cystic ameloblastoma of the jaw. Clin Nucl Med. 19(1):15-8, 1994
                                            22. Mast HL et al: Benign lesions of the mandibular and maxillary region in children: characterization by CT and MRI. Comput Med Imaging Graph. 16(1):1-9, 1992
                                            23. Minami M et al: Ameloblastoma in the maxillomandibular region: MR imaging. Radiology. 184(2):389-93, 1992
                                            24. Heffez L et al: The role of magnetic resonance imaging in the diagnosis and management of ameloblastoma. Oral Surg Oral Med Oral Pathol. 65(1):2-12, 1988
                                            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

                                                      • Synonyms

                                                        • Adamantoblastoma, adamantinoma (old, nonspecific terms; no longer used)
                                                      • Definitions

                                                        • Locally aggressive, benign neoplasm arising from mandibular or maxillary odontogenic epithelium

                                                      IMAGING

                                                      • General Features

                                                        • Radiographic Findings

                                                          • CT Findings

                                                            • MR Findings

                                                              • 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

                                                                                    • Reporting Tips

                                                                                      Selected References

                                                                                      1. Fujita M et al: Diagnostic value of MRI for odontogenic tumours. Dentomaxillofac Radiol. 42(5):20120265, 2013
                                                                                      2. Srinivasan K et al: Diffusion-weighted imaging in the evaluation of odontogenic cysts and tumours. Br J Radiol. 85(1018):e864-70, 2012
                                                                                      3. Ariji Y et al: Imaging features contributing to the diagnosis of ameloblastomas and keratocystic odontogenic tumours: logistic regression analysis. Dentomaxillofac Radiol. 40(3):133-40, 2011
                                                                                      4. Hisatomi M et al: Diagnostic value of dynamic contrast-enhanced MRI for unilocular cystic-type ameloblastomas with homogeneously bright high signal intensity on T2-weighted or STIR MR images. Oral Oncol. 47(2):147-52, 2011
                                                                                      5. Sumi M et al: Diffusion-weighted MR imaging of ameloblastomas and keratocystic odontogenic tumors: differentiation by apparent diffusion coefficients of cystic lesions. AJNR Am J Neuroradiol. 29(10):1897-901, 2008
                                                                                      6. Asaumi J et al: Application of dynamic MRI to differentiating odontogenic myxomas from ameloblastomas. Eur J Radiol. 43(1):37-41, 2002
                                                                                      7. Hayashi K et al: Dynamic multislice helical CT of ameloblastoma and odontogenic keratocyst: correlation between contrast enhancement and angiogenesis. J Comput Assist Tomogr. 26(6):922-6, 2002
                                                                                      8. Mosier KM: Lesions of the Jaw. Semin Ultrasound CT MR. 36(5):444-50, 2015
                                                                                      9. Mosier KM: Magnetic resonance imaging of the maxilla and mandible: signal characteristics and features in the differential diagnosis of common lesions. Top Magn Reson Imaging. 24(1):23-37, 2015
                                                                                      10. Weissman JL et al: Ameloblastoma of the maxilla: CT and MR appearance. AJNR Am J Neuroradiol. 14(1):223-6, 1993
                                                                                      11. Navarro CM et al: Maxillary unicystic ameloblastoma. Dentomaxillofac Radiol. 33(1):60-2, 2004
                                                                                      12. Thosaporn W et al: A comparative study of epithelial cell proliferation between the odontogenic keratocyst, orthokeratinized odontogenic cyst, dentigerous cyst, and ameloblastoma. Oral Dis. 10(1):22-6, 2004
                                                                                      13. Wakoh M et al: Follicular/desmoplastic hybrid ameloblastoma with radiographic features of concomitant fibro-osseous and solitary cystic lesions. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 94(6):774-80, 2002
                                                                                      14. Gupta V et al: Evaluation of panoramic radiography and axial computed tomography in cases of ameloblastoma and central giant cell granuloma of mandible. Indian J Dent Res. 12(4):200-4, 2001
                                                                                      15. van Rensburg LJ et al: Hemangiomatous ameloblastoma: Clinical, radiologic, and pathologic features. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 91(3):374-80, 2001
                                                                                      16. Hughes CA et al: Giant ameloblastoma: report of an extreme case and a description of its treatment. Ear Nose Throat J. 78(8):568, 570-2, 574, 1999
                                                                                      17. Kawai T et al: Diagnostic imaging in two cases of recurrent maxillary ameloblastoma: comparative evaluation of plain radiographs, CT and MR images. Br J Oral Maxillofac Surg. 36(4):304-10, 1998
                                                                                      18. Altini M et al: Three-dimensional computed tomography reconstruction in treatment planning for large ameloblastoma. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 81(5):619-22, 1996
                                                                                      19. Thompson IO et al: Desmoplastic ameloblastoma: correlative histopathology, radiology and CT-MR imaging. J Oral Pathol Med. 25(7):405-10, 1996
                                                                                      20. Reichart PA et al: Ameloblastoma: biological profile of 3677 cases. Eur J Cancer B Oral Oncol. 31B(2):86-99, 1995
                                                                                      21. Shibuya H et al: The use of CT and scintigraphy in diagnosing a cystic ameloblastoma of the jaw. Clin Nucl Med. 19(1):15-8, 1994
                                                                                      22. Mast HL et al: Benign lesions of the mandibular and maxillary region in children: characterization by CT and MRI. Comput Med Imaging Graph. 16(1):1-9, 1992
                                                                                      23. Minami M et al: Ameloblastoma in the maxillomandibular region: MR imaging. Radiology. 184(2):389-93, 1992
                                                                                      24. Heffez L et al: The role of magnetic resonance imaging in the diagnosis and management of ameloblastoma. Oral Surg Oral Med Oral Pathol. 65(1):2-12, 1988