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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
- Abnormal lacrimal pump function
- Mechanical obstruction
- Nasolacrimal obstruction: Cause of 30-50% of cases of epiphora (tears from eye overflow)
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
- Sia PI et al: Interobserver agreement on interpretation of conventional dacryocystography and dacryoscintigraphy findings: A retrospective single-centre study. Clin Exp Ophthalmol. ePub, 2019
- Gokhale SM: Dacryoscintigraphy: A pictorial essay. Indian J Nucl Med. 33(3):214-7, 2018
- Sagili S et al: Lacrimal scintigraphy: "interpretation more art than science". Orbit. 31(2):77-85, 2012
Related Anatomy
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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
- Abnormal lacrimal pump function
- Mechanical obstruction
- Nasolacrimal obstruction: Cause of 30-50% of cases of epiphora (tears from eye overflow)
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
- Sia PI et al: Interobserver agreement on interpretation of conventional dacryocystography and dacryoscintigraphy findings: A retrospective single-centre study. Clin Exp Ophthalmol. ePub, 2019
- Gokhale SM: Dacryoscintigraphy: A pictorial essay. Indian J Nucl Med. 33(3):214-7, 2018
- Sagili S et al: Lacrimal scintigraphy: "interpretation more art than science". Orbit. 31(2):77-85, 2012
