lacrimal sac


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lacrimal sac

[′lak·rə·məl ‚sak]
(anatomy)
The dilation at the upper end of the nasolacrimal duct within the medial canthus of the eye. Also known as dacryocyst.
References in periodicals archive ?
After creating osteotomy, lacrimal sac was identified.
In the surgical technique, the stages of traditional external dacryocystorhinostomy (EDCR) with H flap were followed for patients who had stable middle lacrimal systems (lacrimal sac).
Endoscopic examination of nasal cavities was done for any nasal pathology especially mucosal disease, hypertrophied middle turbinate, nasal polyp, deviated nasal septum and anatomical variations of lacrimal sac that may produce hindrance during endonasal surgery.
The congenital defects of lacrimal apparatus are congenital absence of lacrimal gland, congenital fistula of lacrimal gland, atresia of the lacrimal punctum, atresia of the canaliculi, mucocele of the lacrimal sac but most common malformation is congenital blockage of nasolacrimal duct which may be complete or partial and is bilateral in 1/3 of cases.6 Same frequency of bilateral blockage was seen in our study.
Transcanalicular DCR is a new procedure involving transcanalicular opening in the lacrimal sac and the nasal bone passing the nasal mucosa into the nasal cavity using diode laser probe and then insertion of a tube which remains in situ for three months.
Characterization of mucins in human lacrimal sac and nasolacrimal duct.
Any extra fluid flows to a lacrimal sac near the inner corner of your eye.
Chronic dacryocystitis is defined as the chronic inflammation of the lacrimal sac due to stricture of the nasolacrimal duct secondary to chronic inflammation, which is usually nasal in origin.
Furthermore, it can occur in the lacrimal sac, conjunctiva, uvea, and eyelids.
After that, animals were sacrificed by air embolism to the auricular vein, which was then followed by pathological examination of the lacrimal sac.
Looking for a non-invasive imaging method to accurately determine the location and size of lacrimal sac, as well as the anatomical relationships with the surrounding tissues, would provide the instructive meanings towards the diagnosis and treatment of lacrimal diseases.
(3) emphasized that repeated forceful nasolacrimal lavage can push canalicular granules into the lacrimal sac and lead to NLDO, which increases the importance of early and accurate diagnosis.