{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T21:37:49Z","timestamp":1783028269564,"version":"3.54.6"},"reference-count":20,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2012,5,1]],"date-time":"2012-05-01T00:00:00Z","timestamp":1335830400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vet Radiology Ultrasound"],"published-print":{"date-parts":[[2012,7]]},"abstract":"<jats:p>The computed tomographic (<jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content>) findings of histopathologically confirmed nasopharyngeal polyps are described in 13 cats. Most polyps were mildly hypoattenuating to adjacent muscles and isoattenuating to soft\u2010tissue (<jats:italic>n<\/jats:italic>= 13), homogeneous (<jats:italic>n<\/jats:italic> = 12) and with ill\u2010defined borders (<jats:italic>n<\/jats:italic> = 10) on precontrast images. After contrast medium administration, the polyps were homogeneous (<jats:italic>n<\/jats:italic> = 11), with well\u2010defined borders (<jats:italic>n<\/jats:italic> = 13), oval (<jats:italic>n<\/jats:italic> = 13), and had rim enhancement (<jats:italic>n<\/jats:italic> = 13). Nasopharyngeal polyps were pedunculated in 11 cats with a stalk\u2010like structure connecting the polyp through the auditory tube to an affected tympanic bulla. All cats had at least one tympanic bulla severely affected, with <jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content> images identifying: (1) complete (<jats:italic>n<\/jats:italic> = 12) or partial (<jats:italic>n<\/jats:italic> = 1) obliteration of either the dorsal or ventral compartments with soft\u2010tissue attenuating material; (2) pathologic expansion (<jats:italic>n<\/jats:italic> = 13) with wall thickening (<jats:italic>n<\/jats:italic> = 10) that was asymmetric in nine cats; and (3) identification of a polyp\u2010associated stalk\u2010like structure (<jats:italic>n<\/jats:italic> = 11). Nine cats had unilateral tympanic bulla disease ipsilateral to the polyp, and four cats had bilateral tympanic bulla disease, most severe ipsilateral to the polyp with milder contralateral pathologic changes. Two cats had minimal osteolysis of the tympanic bulla. Enlargement of the medial retropharyngeal lymph node was seen commonly (<jats:italic>n<\/jats:italic> = 8), and in all cats it was ipsilateral to the most affected tympanic bulla. One cat had bilateral lymphadenopathy. <jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content> is an excellent imaging tool for the supportive diagnosis of nasopharyngeal polyps in cats. <jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content> findings of a well\u2010defined mass with strong rim enhancement, mass\u2010associated stalk\u2010like structure, and asymmetric tympanic bulla wall thickening with pathologic expansion of the tympanic bullae are highly indicative of an inflammatory polyp.<\/jats:p>","DOI":"10.1111\/j.1740-8261.2012.01931.x","type":"journal-article","created":{"date-parts":[[2012,5,2]],"date-time":"2012-05-02T05:42:44Z","timestamp":1335937364000},"page":"406-411","source":"Crossref","is-referenced-by-count":35,"title":["COMPUTED TOMOGRAPHIC FEATURES OF FELINE NASOPHARYNGEAL POLYPS"],"prefix":"10.1111","volume":"53","author":[{"given":"Cintia R.","family":"Oliveira","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert T.","family":"O'Brien","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinical Medicine University of Illinois at Urbana\u2010Champaign  1008 W. 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