Dacryoscintigraphy: Review of technique, spectrum of imaging findings and current role in the management of patients with epiphora

Learning Objectives 1. To review the indications and the technique of dacryoscintigraphy. 2. To review the spectrum of imaging findings on dacryoscintigraphy. 3. To review the current role of dacryoscintigraphy in the management of patients with epiphora as compared to contrast dacryocystography.

Epiphora is a common symptom encountered in ophthalmology and is usually due to an obstruction of the lacrimal apparatus. Dacryoscintigraphy is an easy to perform, non invasive nuclear medicine procedure that provides useful physiological information regarding the functioning of lacrimal apparatus unlike contrast dacryocystography which provides only anatomical information. With the recent emphasis on minimally invasive management of patients with epiphora using silicone tube intubation and balloon dilatation, the physiological information provided by dacryoscintigraphy may be increasingly more useful in clinical decision making process including appropriate patient selection and management. Therefore the aim of the present educational exhibit is to review the indications and technique, spectrum of the imaging findings and current role of dacryoscintigraphy in the management of the patients with epiphora