Lacrimal sac diverticula are outpouchings of the lacrimal sac. Their various clinical symptoms complicate differential diagnosis. Here we report two patients of distinctive type of lacrimal sac diverticula. Each of them presented with a mass inferior to the medial canthus with a secreting fistula. Irrigation demonstrated lacrimal drainage system patency. The orificium fistula was located at low...

Oncocytoma of the lacrimal sac is a rarely encountered clinical entity. We report the case of a 72-year-old female patient who was diagnosed to have bilateral nasolacrimal duct obstruction during a pre-cataract surgery screening. Subsequently, she underwent bilateral dacryocystectomy. Histopathological examination of the left lacrimal sac revealed a tumour composed of acini lined by oncocytic c...

PURPOSE To analyze the features of lacrimal drainage system obstruction confirmed during external dacryocystorhinostomy surgeries and report the surgical outcomes. METHODS We reviewed the medical records of a total of 769 cases who underwent external dacryocystorhinostomy for primary lacrimal drainage obstruction between 2005 and 2014. Data about detailed location and extent of obstruction we...

PURPOSE To study the glycoconjugates in the lacrimal sac epithelium of Japanese white rabbits with experimentally induced chronic dacryocystitis. METHODS Chronic dacryocystitis was induced by a subcutaneous injection of albumin followed by an injection of Staphylococcus aureus into the lacrimal sac. The histological appearance of the lacrimal sac was studied using the alcian blue-periodic aci...

purpose: to determine bacterial flora of the conjunctiva and lacrimal sac in adult patients with naso-lacrimal duct obstruction (nldo) in comparison with normal flora. methods: this study included 40 consecutive adult patients with nldo and 40 age- and sex matched healthy controls. specimens for bacterial culture were obtained from the involved and normal conjunc-tiva preoperatively and from th...

Dear Editor, Recently, we experienced two cases of lacrimal sac tumors discovered in patients who presented with persistent epiphora after receiving dacryocystorhynostomy (DCR). A 75-year-old female visited the clinic complaining persistent epiphora in the right eye for 5 years. The patient was diagnosed with nasolacrimal duct obstruction in the right eye and received a DCR twice 2 years ago at...

1. A mucocele of the lacrimal sac, or 2. Chronic dacryocystitis or conjunctivitis due to lacrimal sac obstruction, or 3. Congenital nasolacrimal duct obstruction that cannot be cured by probing (members should be over 1 year of age), or 4. Epiphora (excessive tearing) due to acquired obstruction within the nasolacrimal sac and duct, or 5. Lacrimal sac infection that must be relieved before intr...

BACKGROUND It is frequently stated in the literature that there is a common canaliculus (CC) in the lacrimal drainage system in about 90% of individuals; in the remaining 10%, the upper and lower canaliculi enter the lacrimal sac separately. To our knowledge, there is no quantitative study supporting this assumption. OBJECTIVE To investigate the frequency of the CC and other anatomical types ...

BACKGROUND Treatment of lacrimal sac abscess of the traditional surgical approach may result in complications from cutaneous fistula formation, damage the sac, cause skin scarring and even have the potential for inducing cicatricial ectropion. We designed a new treatment scheme that is expected to achieve internal drainage with the use of lacrimal probe and crawford silicon tube. METHODS A pr...

Primary diffuse large B-cell lymphoma of the lacrimal sac is rare. Herein we report a 55-year-old female presented with epiphora in the right eye. Distention of the lacrimal sac secondary to nasolacrimal duct obstruction was observed. She was scheduled for external dacryocystorinostomy for the next month. When she came for surgery, a growing mass was recognised over the lacrimal sac region. On ...