link
Bookmarks
Nasolacrimal Complex Obstruction
Paige Bennett, MD; Zachary Allen Lindsey, MD
To access 4,300 diagnoses written by the world's leading experts in radiology, please log in or subscribe.Log inSubscribe
0
0
0
0

KEY FACTS

  • Terminology

    • Imaging

      • Clinical Issues

        • Diagnostic Checklist

          TERMINOLOGY

          • Definitions

            • Nasolacrimal obstruction: Cause of 30-50% of cases of epiphora (tears from eye overflow)
              • Mechanical obstruction
                • Obstruction: Complete obstruction of nasolacrimal system
                • Stenosis: Partial obstruction of nasolacrimal system
              • Functional obstruction
                • Abnormal lacrimal pump function
                  • Problem with contraction of orbiculari oculi muscle necessary for tears to drain properly

          IMAGING

          • Radiographic Findings

            • Nuclear Medicine Findings

              • Imaging Recommendations

                DIFFERENTIAL DIAGNOSIS

                  PATHOLOGY

                  • General Features

                    • Gross Pathologic & Surgical Features

                      • Microscopic Features

                        CLINICAL ISSUES

                        • Presentation

                          • Demographics

                            • Natural History & Prognosis

                              • Treatment

                                DIAGNOSTIC CHECKLIST

                                • Reporting Tips

                                  Selected References

                                  1. Sia PI et al: Interobserver agreement on interpretation of conventional dacryocystography and dacryoscintigraphy findings: A retrospective single-centre study. Clin Exp Ophthalmol. ePub, 2019
                                  2. Gokhale SM: Dacryoscintigraphy: A pictorial essay. Indian J Nucl Med. 33(3):214-7, 2018
                                  3. Sagili S et al: Lacrimal scintigraphy: "interpretation more art than science". Orbit. 31(2):77-85, 2012
                                  Related Anatomy
                                  Loading...
                                  Related Differential Diagnoses
                                  Loading...
                                  References
                                  Tables

                                  Tables

                                  KEY FACTS

                                  • Terminology

                                    • Imaging

                                      • Clinical Issues

                                        • Diagnostic Checklist

                                          TERMINOLOGY

                                          • Definitions

                                            • Nasolacrimal obstruction: Cause of 30-50% of cases of epiphora (tears from eye overflow)
                                              • Mechanical obstruction
                                                • Obstruction: Complete obstruction of nasolacrimal system
                                                • Stenosis: Partial obstruction of nasolacrimal system
                                              • Functional obstruction
                                                • Abnormal lacrimal pump function
                                                  • Problem with contraction of orbiculari oculi muscle necessary for tears to drain properly

                                          IMAGING

                                          • Radiographic Findings

                                            • Nuclear Medicine Findings

                                              • Imaging Recommendations

                                                DIFFERENTIAL DIAGNOSIS

                                                  PATHOLOGY

                                                  • General Features

                                                    • Gross Pathologic & Surgical Features

                                                      • Microscopic Features

                                                        CLINICAL ISSUES

                                                        • Presentation

                                                          • Demographics

                                                            • Natural History & Prognosis

                                                              • Treatment

                                                                DIAGNOSTIC CHECKLIST

                                                                • Reporting Tips

                                                                  Selected References

                                                                  1. Sia PI et al: Interobserver agreement on interpretation of conventional dacryocystography and dacryoscintigraphy findings: A retrospective single-centre study. Clin Exp Ophthalmol. ePub, 2019
                                                                  2. Gokhale SM: Dacryoscintigraphy: A pictorial essay. Indian J Nucl Med. 33(3):214-7, 2018
                                                                  3. Sagili S et al: Lacrimal scintigraphy: "interpretation more art than science". Orbit. 31(2):77-85, 2012