{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T16:25:31Z","timestamp":1762100731731,"version":"3.38.0"},"reference-count":21,"publisher":"American Veterinary Medical Association (AVMA)","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["javma"],"published-print":{"date-parts":[[2007,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:p><jats:bold>Case Description<\/jats:bold>\u2014A 3-year-old Thoroughbred mare was evaluated because of abnormal upper respiratory tract sounds (that had become apparent during race training) of 3- to 4- months' duration.<\/jats:p>\n<jats:p><jats:bold>Clinical Findings<\/jats:bold>\u2014On initial physical evaluation, there were no abnormal findings. During trotting, an abnormal upper airway expiratory sound was audible. Endoscopic examination revealed a small mass protruding into the right ventral nasal meatus. Radiographic images of the skull revealed no abnormal findings. Computed tomography of the head revealed an abnormal structure in the same location as the mass that was observed during endoscopy. The x-ray attenuation of the mass was identical to that of dental tissue.<\/jats:p>\n<jats:p><jats:bold>Treatment and Outcome<\/jats:bold>\u2014The mass was surgically removed with endoscopic guidance. On gross examination, the excised mass appeared to be a nearly normal molariform tooth. Histologic examination revealed that it was a well-formed tooth, with no other associated cellular populations. The mass was determined to be a molariform supernumerary intranasal tooth. Six months following discharge from the hospital, the trainer reported that the abnormal respiratory tract sound was no longer audible. During a follow-up endoscopic examination performed at the training facility, no abnormalities were detected.<\/jats:p>\n<jats:p><jats:bold>Clinical Relevance<\/jats:bold>\u2014In horses, an intranasal tooth should be considered as a differential diagnosis for expiratory stridor. Clear definitions of heterotopic polyodontia, dentigerous cyst, and temporal teratoma can be used to clinically diagnose these separate anomalies. In the horse of this report, computed tomographic findings contributed to determination of a diagnosis and formulation of a treatment plan.<\/jats:p>","DOI":"10.2460\/javma.231.9.1374","type":"journal-article","created":{"date-parts":[[2007,11,1]],"date-time":"2007-11-01T13:46:33Z","timestamp":1193924793000},"page":"1374-1377","source":"Crossref","is-referenced-by-count":15,"title":["Endoscopic removal of a molariform supernumerary intranasal tooth (heterotopic polyodontia) in a horse"],"prefix":"10.2460","volume":"231","author":[{"given":"Monica C.","family":"de Mira","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claude A.","family":"Ragle","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kristin B.","family":"Gablehouse","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Russell L.","family":"Tucker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"ref1","series-title":"Vet Clin North Am Equine Pract","first-page":"435","article-title":"Upper respiratory causes of exercise intolerance","volume":"12","author":"Beard","year":"1996"},{"key":"ref2","series-title":"Vet J","first-page":"243","article-title":"High-speed treadmill videoendoscopic examination of the upper respiratory tract in the horse: the results of 291 clinical cases","volume":"170","author":"Tan","year":"2005"},{"key":"ref3","series-title":"Equine Vet J","first-page":"318","article-title":"Effects of stylopharyngeus muscle dysfunction on the nasopharynx in exercising horses","volume":"36","author":"Tessier","year":"2004"},{"key":"ref4","series-title":"Vet Clin North Am Equine Pract","first-page":"111","article-title":"Diseases of the nasal cavity","volume":"9","author":"Nickels","year":"1993"},{"key":"ref5","series-title":"Vet Radiol Ultrasound","first-page":"44","article-title":"Communications of normal nasal and paranasal cavities in computed tomography of horses","volume":"46","author":"Probst","year":"2005"},{"key":"ref6","series-title":"Vet Clin North Am Equine Pract","first-page":"259","article-title":"Dental imaging","volume":"14","author":"O'Brien","year":"1998"},{"key":"ref7","series-title":"Equine medicine and surgery.","first-page":"445","article-title":"Diseases of the teeth and paranasal sinuses","author":"Baker","year":"1982"},{"key":"ref8","series-title":"Pathology of domestic animals","first-page":"5","article-title":"The alimentary system","author":"Barker","year":"1993"},{"key":"ref9","series-title":"Laryngoscope","first-page":"1027","article-title":"Endoscopic extraction of an intranasal tooth: a review of 13 cases","volume":"111","author":"Lee","year":"2001"},{"key":"ref10","series-title":"Vet Clin North Am Equine Pract","first-page":"273","article-title":"Congenital dental disease of horses","volume":"14","author":"DeBowes","year":"1998"},{"key":"ref11","series-title":"J Vet Dent","first-page":"143","article-title":"Displacement of maxillary premolar teeth in a filly","volume":"20","author":"Capik","year":"2003"},{"key":"ref12","series-title":"Oral Surg Oral Med Oral Pathol","first-page":"348","article-title":"Dentigerous cysts in animals","volume":"75","author":"Gardner","year":"1993"},{"key":"ref13","series-title":"Cornell Vet","first-page":"103","article-title":"Intracranial trauma associated with extraction of a temporal ear tooth (dentigerous cyst) in a horse","volume":"81","author":"Hunt","year":"1991"},{"key":"ref14","series-title":"Compend Contin Educ Pract Vet","first-page":"1120","article-title":"Dentigerous cysts","volume":"12","author":"Rashmir-Raven","year":"1990"},{"key":"ref15","series-title":"J Am Vet Med Assoc","first-page":"535","article-title":"Heterotopic polyodontia in horses: nine cases (1969\u20131986)","volume":"192","author":"Fessler","year":"1988"},{"key":"ref16","series-title":"Vet Q","first-page":"61","article-title":"Congenital tumours and tumour-like lesions in domestic animals. 3. 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A review","volume":"25","author":"Misdorp","year":"2003"},{"year":"2003","series-title":"Histological classification of tumors of the alimentary system of domestic animals","author":"Head","key":"ref17"},{"key":"ref18","series-title":"J Small Anim Pract","first-page":"210","article-title":"Bilateral mandibular dentigerous cysts in a dog","volume":"45","author":"Baxter","year":"2004"},{"key":"ref19","series-title":"J Oral Sci","first-page":"253","article-title":"Odontogenic cysts: a clinical study of 90 cases","volume":"46","author":"Koseoglu","year":"2004"},{"key":"ref20","series-title":"Dentomaxillofac Radiol","first-page":"125","article-title":"Radiographic examination of mesiodens and their associated complications","volume":"33","author":"Asaumi","year":"2004"},{"key":"ref21","series-title":"J Indian Soc Pedod Prev Dent","first-page":"45","article-title":"Inverted central incisor\u2014a case report","volume":"22","author":"Shashikiran","year":"2004"}],"container-title":["Journal of the American Veterinary Medical Association"],"original-title":[],"link":[{"URL":"https:\/\/avmajournals.avma.org\/view\/journals\/javma\/231\/9\/javma.231.9.1374.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/avmajournals.avma.org\/downloadpdf\/journals\/javma\/231\/9\/javma.231.9.1374.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/avmajournals.avma.org\/downloadpdf\/journals\/javma\/231\/9\/javma.231.9.1374.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T13:53:55Z","timestamp":1741355635000},"score":1,"resource":{"primary":{"URL":"https:\/\/avmajournals.avma.org\/view\/journals\/javma\/231\/9\/javma.231.9.1374.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,11,1]]},"references-count":21,"journal-issue":{"issue":"9"},"URL":"https:\/\/doi.org\/10.2460\/javma.231.9.1374","relation":{},"ISSN":["0003-1488"],"issn-type":[{"type":"print","value":"0003-1488"}],"subject":[],"published":{"date-parts":[[2007,11,1]]}}}