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  • Title: CT-dacryocystography for nasolacrimal duct obstruction following paranasal sinus surgery.
    Author: Massoud TF, Whittet HB, Anslow P.
    Journal: Br J Radiol; 1993 Mar; 66(783):223-7. PubMed ID: 8472115.
    Abstract:
    Nasolacrimal duct obstruction and consequent epiphora is a complication that may develop in some patients following paranasal sinus surgery. We describe the technique of CT-dacryocystography which entails contrast injection of the lacrimal system and simultaneous computed tomography (CT) scanning of the facial structures. This technique provides concurrent information regarding obstruction of the nasolacrimal duct and the presence of disease recurrence or persistence in the adjacent paranasal sinuses. The role of CT-dacryocystography prior to endoscopic dacryocystorhinostomy is discussed briefly.
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