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Petromastoid Canal
H. Ric Harnsberger, MD; Joshua E. Lantos, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Diagnostic Checklist

            TERMINOLOGY

            • Abbreviations

              • Petromastoid canal (PMC)
            • Synonyms

              • Subarcuate canal or canaliculus, subarcuate channel or tract, subarcuate artery canal
            • Definitions

              • PMC: Normal temporal bone osseous canal that passes through arch of superior semicircular canal (SSC) conveying subarcuate artery to otic capsule

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        CLINICAL ISSUES

                        • Presentation

                          • Natural History & Prognosis

                            DIAGNOSTIC CHECKLIST

                            • Consider

                              Selected References

                              1. Rasmussen J et al: A classification for the anterior inferior cerebellar artery-subarcuate artery complex based on the embryological development. J Neurol Surg B Skull Base. 81(5):536-45, 2020
                              2. Maślanka M et al: Postnatal development of the subarcuate fossa and subarcuate canaliculus-a computed tomographic study. Surg Radiol Anat. 40(10):1111-7, 2018
                              3. Mena-Domínguez EA et al: Petromastoid canal. Acta Otorrinolaringol Esp. 66(3):180, 2015
                              4. Koral K et al: MRI of the petromastoid canal in children. J Magn Reson Imaging. 39(4):966-71, 2014
                              5. Kenis C et al: The petromastoid canal in the young child: appearance on computed tomography. Int J Pediatr Otorhinolaryngol. 77(5):803-7, 2013
                              6. Migirov L et al: Radiology of the petromastoid canal. Otol Neurotol. 27(3):410-3, 2006
                              7. Krombach GA et al: The petromastoid canal on computed tomography. Eur Radiol. 12(11):2770-5, 2002
                              8. Tekdemir I et al: The subarcuate canaliculus and its artery--a radioanatomical study. Ann Anat. 181(2):207-11, 1999
                              9. Hilding DA: Petrous apex and subarcuate fossa maturation. Laryngoscope. 97(10):1129-35, 1987
                              10. Wilbrand H et al: The subarcuate fossa and channel. A radioanatomic investigation. Acta Radiol Diagn (Stockh). 27(6):637-44, 1986
                              11. Mazzoni A: The subarcuate artery in man. Laryngoscope. 80(1):69-79, 1970
                              Related Anatomy
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                              Related Differential Diagnoses
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                              References
                              Tables

                              Tables

                              KEY FACTS

                              • Terminology

                                • Imaging

                                  • Top Differential Diagnoses

                                    • Pathology

                                      • Diagnostic Checklist

                                        TERMINOLOGY

                                        • Abbreviations

                                          • Petromastoid canal (PMC)
                                        • Synonyms

                                          • Subarcuate canal or canaliculus, subarcuate channel or tract, subarcuate artery canal
                                        • Definitions

                                          • PMC: Normal temporal bone osseous canal that passes through arch of superior semicircular canal (SSC) conveying subarcuate artery to otic capsule

                                        IMAGING

                                        • General Features

                                          • CT Findings

                                            • MR Findings

                                              • Imaging Recommendations

                                                DIFFERENTIAL DIAGNOSIS

                                                  PATHOLOGY

                                                  • General Features

                                                    CLINICAL ISSUES

                                                    • Presentation

                                                      • Natural History & Prognosis

                                                        DIAGNOSTIC CHECKLIST

                                                        • Consider

                                                          Selected References

                                                          1. Rasmussen J et al: A classification for the anterior inferior cerebellar artery-subarcuate artery complex based on the embryological development. J Neurol Surg B Skull Base. 81(5):536-45, 2020
                                                          2. Maślanka M et al: Postnatal development of the subarcuate fossa and subarcuate canaliculus-a computed tomographic study. Surg Radiol Anat. 40(10):1111-7, 2018
                                                          3. Mena-Domínguez EA et al: Petromastoid canal. Acta Otorrinolaringol Esp. 66(3):180, 2015
                                                          4. Koral K et al: MRI of the petromastoid canal in children. J Magn Reson Imaging. 39(4):966-71, 2014
                                                          5. Kenis C et al: The petromastoid canal in the young child: appearance on computed tomography. Int J Pediatr Otorhinolaryngol. 77(5):803-7, 2013
                                                          6. Migirov L et al: Radiology of the petromastoid canal. Otol Neurotol. 27(3):410-3, 2006
                                                          7. Krombach GA et al: The petromastoid canal on computed tomography. Eur Radiol. 12(11):2770-5, 2002
                                                          8. Tekdemir I et al: The subarcuate canaliculus and its artery--a radioanatomical study. Ann Anat. 181(2):207-11, 1999
                                                          9. Hilding DA: Petrous apex and subarcuate fossa maturation. Laryngoscope. 97(10):1129-35, 1987
                                                          10. Wilbrand H et al: The subarcuate fossa and channel. A radioanatomic investigation. Acta Radiol Diagn (Stockh). 27(6):637-44, 1986
                                                          11. Mazzoni A: The subarcuate artery in man. Laryngoscope. 80(1):69-79, 1970