{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T18:47:57Z","timestamp":1780080477230,"version":"3.54.0"},"reference-count":14,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2014,10,14]],"date-time":"2014-10-14T00:00:00Z","timestamp":1413244800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Veterinary Ophthalmology"],"published-print":{"date-parts":[[2015,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To describe a nasolacrimal duct (<jats:styled-content style=\"fixed-case\">NLD<\/jats:styled-content>) obstruction secondary to an ectopic tooth in a 5\u2010year\u2010old male Border collie. The dog was presented with a 1\u2010month history of mucopurulent discharge from the left eye (<jats:styled-content style=\"fixed-case\">OS<\/jats:styled-content>) preceded by a lifelong history of epiphora <jats:styled-content style=\"fixed-case\">OS<\/jats:styled-content>. Treatment with neomycin\/polymyxin B\/dexamethasone ophthalmic solution had not improved the clinical signs, and the <jats:styled-content style=\"fixed-case\">NLD<\/jats:styled-content> was not patent when irrigated by the referring veterinarian.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A complete ophthalmologic examination was performed followed by dacryocystorhinography and computed tomography (<jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The ophthalmologic examination revealed marked mucopurulent discharge, mild conjunctivitis, slightly elevated <jats:styled-content style=\"fixed-case\">STT<\/jats:styled-content> measurements, and a negative Jones test <jats:styled-content style=\"fixed-case\">OS<\/jats:styled-content>. Both nasolacrimal puncta <jats:styled-content style=\"fixed-case\">OS<\/jats:styled-content> could be cannulated without resistance for approximately 1.5\u00a0cm. Upon irrigation, copious amounts of mucopurulent discharge were exited through the corresponding punctum, while no fluid could be detected at the nares. Dacryocystorhinography was performed. Radiographs revealed an ectopic left canine tooth within the left nasal cavity. A cystic dilation of the <jats:styled-content style=\"fixed-case\">NLD<\/jats:styled-content> was observed proximal to the ectopic tooth. Computed tomography was performed to determine the exact position of the tooth and possible involvement of adjacent structures; <jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content> confirmed the previous imaging findings. Treatment with systemic antibiotics, <jats:styled-content style=\"fixed-case\">NSAID<\/jats:styled-content>s, and ofloxacin ophthalmic solution led to resolution of the clinical signs within several days. Surgery was declined by the owner.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This is the first case report describing a blocked <jats:styled-content style=\"fixed-case\">NLD<\/jats:styled-content> due to an ectopic tooth in a dog. Ectopic teeth should be included as a differential diagnosis in cases of dacryocystitis and chronic epiphora in dogs.<\/jats:p><\/jats:sec>","DOI":"10.1111\/vop.12225","type":"journal-article","created":{"date-parts":[[2014,10,14]],"date-time":"2014-10-14T05:45:11Z","timestamp":1413265511000},"page":"433-436","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Dacryocystitis following a nasolacrimal duct obstruction caused by an ectopic intranasal tooth in a dog"],"prefix":"10.1111","volume":"18","author":[{"given":"Katrin","family":"Voelter\u2010Ratson","sequence":"first","affiliation":[{"name":"Equine Department, Ophthalmology Vetsuisse Faculty University of Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Regine","family":"Hagen","sequence":"additional","affiliation":[{"name":"Section of Diagnostic Imaging Vetsuisse Faculty University of Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Grundmann","sequence":"additional","affiliation":[{"name":"Clinic of Small Animal Surgery Section of Dentistry Vetsuisse Faculty University of Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernhard Martin","family":"Spiess","sequence":"additional","affiliation":[{"name":"Equine Department, Ophthalmology Vetsuisse Faculty University of Zurich Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,10,14]]},"reference":[{"key":"e_1_2_3_2_1","first-page":"894","volume-title":"Veterinary Ophthalmology","author":"Gelatt KN","year":"2013"},{"key":"e_1_2_3_3_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.2001.218.541"},{"key":"e_1_2_3_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-5876(02)00290-2"},{"key":"e_1_2_3_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0161-6420(99)00023-8"},{"key":"e_1_2_3_6_1","doi-asserted-by":"publisher","DOI":"10.1597\/1545-1569(1996)033<0157:ITIAPW>2.3.CO;2"},{"key":"e_1_2_3_7_1","first-page":"128","article-title":"Supernumerary nasal teeth","volume":"67","author":"Murty PS","year":"1988","journal-title":"Ear, Nose, and Throat Journal"},{"key":"e_1_2_3_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/0030-4220(79)90163-4"},{"key":"e_1_2_3_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jemermed.2010.11.045"},{"key":"e_1_2_3_10_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.231.9.1374"},{"key":"e_1_2_3_11_1","volume-title":"Oral and Maxillofacial Surgery in Dogs and Cats","author":"Verstraete FJ","year":"2012"},{"key":"e_1_2_3_12_1","doi-asserted-by":"publisher","DOI":"10.5326\/JAAHA-MS-5830"},{"key":"e_1_2_3_13_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.239.11.1470"},{"key":"e_1_2_3_14_1","first-page":"307","article-title":"Dentigerous cyst of the maxilla and its image diagnosis","volume":"29","author":"Okita W","year":"1991","journal-title":"Rhinology"},{"key":"e_1_2_3_15_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.235.6.710"}],"container-title":["Veterinary Ophthalmology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fvop.12225","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/vop.12225","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,1]],"date-time":"2023-10-01T11:52:51Z","timestamp":1696161171000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/vop.12225"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,10,14]]},"references-count":14,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2015,9]]}},"alternative-id":["10.1111\/vop.12225"],"URL":"https:\/\/doi.org\/10.1111\/vop.12225","archive":["Portico"],"relation":{},"ISSN":["1463-5216","1463-5224"],"issn-type":[{"value":"1463-5216","type":"print"},{"value":"1463-5224","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,10,14]]},"assertion":[{"value":"2014-10-14","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}