Obstruction of nasolacrimal drainage apparatus

Obstruction

of nasolacrimal drainage apparatus • Post-saccular lacrimal duct stenosis - Ganzer Fall bei Radiopaedia

Nicoletti, D. Post-saccular lacrimal duct stenosis. Case study, Radiopaedia.org. (accessed on 07 Nov 2022) https://doi.org/10.53347/rID-43884 • CC by-nc-sa 3.0 (modified)

Obstruction

of nasolacrimal drainage apparatus • Lester Jones tube - Ganzer Fall bei Radiopaedia

Hacking, C. Lester Jones tube. Case study, Radiopaedia.org. (accessed on 07 Nov 2022) https://doi.org/10.53347/rID-84965 • CC by-nc-sa 3.0 (modified)

Recurrent

epiphora after dacryocystorhinostomy surgery: Structural abnormalities identified with dacryocystography and long term outcomes of revision surgery. Images showing the different abnormalities seen on DCGs following DCR surgery. a right inferior canalicular block, b left common canalicular block, c right complete surgical anastamosis closure with closed sac remnant, d left complete surgical anastamosis closure with flow through the nasolacrimal duct, e right narrow anastomosis with narrow flow-stream into the nasal space, f right narrow and high anastamosis, g right narrow anastamosis with retained dye on erect x-ray, h right narrow anastamosis with dye also passing through the nasolacrimal duct

bmcophthalmol.biomedcentral.com • CC-by-4.0

Recurrent

epiphora after dacryocystorhinostomy surgery: Structural abnormalities identified with dacryocystography and long term outcomes of revision surgery. DCG images showing drainage into the nasal sinuses. a + b left, c right. The left, dye filled an ethmoidal air cell as well as passing though the nasolacrimal duct

bmcophthalmol.biomedcentral.com • CC-by-4.0

Radiopaedia • CC-by-nc-sa 3.0 • de

Obstruction of nasolacrimal drainage apparatus results in epiphora and can be primary or secondary, congenital or acquired. Obstruction can occur at canalicular, lacrimal saccular, or nasolacrimal ductal (post-saccular) levels.