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Retention Cyst of Pharyngeal Mucosal Space
Surjith Vattoth, MD, FRCR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • Retention cyst (RC) of pharyngeal mucosal space (PMS)
              • Definitions

                • RC: Benign, asymptomatic PMS postinflammatory cyst
                  • Includes nasopharyngeal RC, tonsillar RC, vallecular RC

              IMAGING

              • General Features

                • 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

                                      • Image Interpretation Pearls

                                        Selected References

                                        1. Soong WJ et al: Vallecular cyst with coexisting laryngomalacia: successful diagnosis and laser therapy by flexible endoscopy with a novel noninvasive ventilation support in infants. Pediatr Pulmonol. 55(7):1750-6, 2020
                                        2. Cadena E et al: Bilateral vallecular cyst: transoral robotic resection. J Robot Surg. 12(2):369-72, 2018
                                        3. Matsumoto Y et al: Intra-adenoid cyst: a case report with an immunohistochemical study and review of literature. Clin Med Insights Case Rep. 8:41-5, 2015
                                        4. Flis DW et al: Nasopharyngeal branchial cysts-diagnosis and management: a case series. J Neurol Surg B Skull Base. 74(1):50-3, 2013
                                        5. Woodfield CA et al: Pharyngeal retention cysts: radiographic findings in seven patients. AJR Am J Roentgenol. 184(3):793-6, 2005
                                        6. Yousem DM et al: Oral cavity and pharynx. Radiol Clin North Am. 36(5):967-81, vii, 1998
                                        7. Giunta JL: Bacterial plug versus pseudocyst of the tonsils. Oral Surg Oral Med Oral Pathol. 63(2):202-7, 1987
                                        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

                                                    • Abbreviations

                                                      • Retention cyst (RC) of pharyngeal mucosal space (PMS)
                                                    • Definitions

                                                      • RC: Benign, asymptomatic PMS postinflammatory cyst
                                                        • Includes nasopharyngeal RC, tonsillar RC, vallecular RC

                                                    IMAGING

                                                    • General Features

                                                      • 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

                                                                            • Image Interpretation Pearls

                                                                              Selected References

                                                                              1. Soong WJ et al: Vallecular cyst with coexisting laryngomalacia: successful diagnosis and laser therapy by flexible endoscopy with a novel noninvasive ventilation support in infants. Pediatr Pulmonol. 55(7):1750-6, 2020
                                                                              2. Cadena E et al: Bilateral vallecular cyst: transoral robotic resection. J Robot Surg. 12(2):369-72, 2018
                                                                              3. Matsumoto Y et al: Intra-adenoid cyst: a case report with an immunohistochemical study and review of literature. Clin Med Insights Case Rep. 8:41-5, 2015
                                                                              4. Flis DW et al: Nasopharyngeal branchial cysts-diagnosis and management: a case series. J Neurol Surg B Skull Base. 74(1):50-3, 2013
                                                                              5. Woodfield CA et al: Pharyngeal retention cysts: radiographic findings in seven patients. AJR Am J Roentgenol. 184(3):793-6, 2005
                                                                              6. Yousem DM et al: Oral cavity and pharynx. Radiol Clin North Am. 36(5):967-81, vii, 1998
                                                                              7. Giunta JL: Bacterial plug versus pseudocyst of the tonsils. Oral Surg Oral Med Oral Pathol. 63(2):202-7, 1987