{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T11:55:55Z","timestamp":1773057355335,"version":"3.50.1"},"reference-count":22,"publisher":"American Animal Hospital Association","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p>\n                    Thymomas are uncommon neoplasms that are typically located in the cranioventral mediastinum in domestic species, which generally affects older animals. Medical records and sonograms of 50 animals diagnosed with either mediastinal thymoma (n = 35) or lymphoma (n = 15) between January 2005 and February 2012 were reviewed. Cases with definitive cytological and\/or histological diagnoses of either thymoma or lymphoma were included in this study. Masses were characterized by echogenicity, presence or absence of cysts, shape, margination, vascularity, and presence of effusion. Many thymomas (57.1%) were sonographically cystic in appearance and nearly all were heterogeneous (94%) in echogenicity compared with lymphoma (\n                    <jats:italic>P<\/jats:italic>\n                    = .0028). Lymphomatous lymph nodes were more likely to be solid (80%) and were equally divided between hypoechoic (47%) and heterogeneous (53%) echogenicities. Sonographic findings of either internal cysts or a heterogeneous echogenicity in mediastinal masses may be suggestive of a thymoma.\n                  <\/jats:p>","DOI":"10.5326\/jaaha-ms-6132","type":"journal-article","created":{"date-parts":[[2014,9,24]],"date-time":"2014-09-24T09:40:55Z","timestamp":1411551655000},"page":"409-413","source":"Crossref","is-referenced-by-count":25,"title":["Sonographic Characteristics of Thymoma Compared With Mediastinal Lymphoma"],"prefix":"10.5326","volume":"50","author":[{"given":"Morganne M.E.","family":"Patterson","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Angela J.","family":"Marolf","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"3280","reference":[{"issue":"11","key":"i1547-3317-50-6-409-bib1","series-title":"J Am Vet Med Assoc","first-page":"1355","article-title":"Clinical and pathologic features of thymoma in 15 dogs","volume":"184","author":"Aronsohn","year":"1984","unstructured":"Aronsohn\n              MG\n            , SchunkKL, CarpenterJL. Clinical and pathologic features of thymoma in 15 dogs. J Am Vet Med Assoc1984;184(11):1355\u201362."},{"key":"i1547-3317-50-6-409-bib2","series-title":"Textbook of veterinary anatomy","first-page":"258","author":"Dyce","year":"2002","unstructured":"Dyce\n              KM\n            , SackWO, WensingCJG. Textbook of veterinary anatomy. 3rd ed.Philadelphia: Saunders; 2002:258."},{"issue":"1","key":"i1547-3317-50-6-409-bib3","series-title":"J Feline Med Surg","first-page":"27","article-title":"Feline cystic thymoma: a clinicopathologic, immunohistologic, and electron microscopic study of 14 cases","volume":"5","author":"Patnaik","year":"2003","unstructured":"Patnaik\n              AK\n            , LiebermanPH, ErlandsonRA. Feline cystic thymoma: a clinicopathologic, immunohistologic, and electron microscopic study of 14 cases. J Feline Med Surg2003;5(1):27\u201335."},{"issue":"4","key":"i1547-3317-50-6-409-bib4","series-title":"Vet Clin North Am Small Anim Pract","first-page":"755","article-title":"Canine thymoma","volume":"15","author":"Aronsohn","year":"1985","unstructured":"Aronsohn\n              M\n            \n          . Canine thymoma. Vet Clin North Am Small Anim Pract1985;15(4):755\u201367."},{"key":"i1547-3317-50-6-409-bib5","series-title":"Textbook of veterinary physiology","first-page":"663","author":"Cunningham","year":"2007","unstructured":"Cunningham\n              JG\n            , KleinBG. Textbook of veterinary physiology. 4th ed.St. Louis: Saunders; 2007:663."},{"issue":"9","key":"i1547-3317-50-6-409-bib6","series-title":"J Small Anim Pract","first-page":"393","article-title":"Review of thymic pathology in 30 cats and 36 dogs","volume":"38","author":"Day","year":"1997","unstructured":"Day\n              MJ\n            \n          . Review of thymic pathology in 30 cats and 36 dogs. J Small Anim Pract1997;38(9):393\u2013403."},{"key":"i1547-3317-50-6-409-bib7","series-title":"Small animal clinical oncology","first-page":"795","article-title":"Thymoma","author":"Withrow","year":"2007","unstructured":"Withrow\n              SJ\n            \n          . Thymoma. In: WithrowSJ, VailDM, eds. Small animal clinical oncology. St. Louis: Saunders; 2007:795\u20139."},{"issue":"3","key":"i1547-3317-50-6-409-bib8","series-title":"J Am Vet Med Assoc","first-page":"248","article-title":"Thymoma in 11 cats","volume":"181","author":"Carpenter","year":"1982","unstructured":"Carpenter\n              JL\n            , HolzworthJ. Thymoma in 11 cats. J Am Vet Med Assoc1982;181(3):248\u201351."},{"issue":"6","key":"i1547-3317-50-6-409-bib9","series-title":"Vet Radiol Ultrasound","first-page":"542","article-title":"Computed tomographic evaluation of canine and feline mediastinal masses in 14 patients","volume":"45","author":"Yoon","year":"2004","unstructured":"Yoon\n              J\n            , FeeneyDA, CronkDE. Computed tomographic evaluation of canine and feline mediastinal masses in 14 patients. Vet Radiol Ultrasound2004;45(6):542\u20136."},{"key":"i1547-3317-50-6-409-bib10","series-title":"Atlas of neoplastic pulmonary disease","first-page":"115","article-title":"Thymoma","author":"Blackmon","year":"2010","unstructured":"Blackmon\n              S\n            , IrwinRS, CaglePT. Thymoma. In: FraireAE, ed. Atlas of neoplastic pulmonary disease. New York: Springer; 2010:115\u20137."},{"key":"i1547-3317-50-6-409-bib11","series-title":"J Am Anim Hosp Assoc","first-page":"95","article-title":"Invasive thymoma in a dog: a case report","volume":"13","author":"Robinson","year":"1977","unstructured":"Robinson\n              WC\n            , CantwellHD, CrawleyRR. Invasive thymoma in a dog: a case report. J Am Anim Hosp Assoc1977;13:95\u20137."},{"issue":"3","key":"i1547-3317-50-6-409-bib12","series-title":"J Am Vet Med Assoc","first-page":"306","article-title":"Thymoma in the dog: two case reports and review of 20 additional cases","volume":"183","author":"Bellah","year":"1983","unstructured":"Bellah\n              JR\n            , StiffME, RussellRG. Thymoma in the dog: two case reports and review of 20 additional cases. J Am Vet Med Assoc1983;183(3):306\u201311."},{"key":"i1547-3317-50-6-409-bib13","series-title":"Textbook of internal medicine: diseases of the dog and cat","first-page":"839","author":"Ettinger","year":"2010","unstructured":"Ettinger\n              SJ\n            , FeldmanEC. Textbook of internal medicine: diseases of the dog and cat. St. Louis: Elsevier Saunders; 2010:839\u201341."},{"issue":"6","key":"i1547-3317-50-6-409-bib14","series-title":"Can Vet J","first-page":"593","article-title":"Veterinary diagnostic imaging. Thymoma","volume":"47","author":"Hylands","year":"2006","unstructured":"Hylands\n              R\n            \n          . Veterinary diagnostic imaging. Thymoma. Can Vet J2006;47(6):593\u20136."},{"key":"i1547-3317-50-6-409-bib15","series-title":"Essentials of pathophysiology-concepts of altered health states","first-page":"134","author":"Porth","year":"2004","unstructured":"Porth\n              CM\n            \n          . Essentials of pathophysiology-concepts of altered health states. Philadelphia: Lippincott Williams and Wilkins; 2004:134\u201349."},{"issue":"7","key":"i1547-3317-50-6-409-bib16","series-title":"J Am Vet Med Assoc","first-page":"1007","article-title":"Thymoma in dogs: 23 cases (1980\u20131991)","volume":"205","author":"Atwater","year":"1994","unstructured":"Atwater\n              SW\n            , PowersBE, ParkRD. Thymoma in dogs: 23 cases (1980\u20131991). J Am Vet Med Assoc1994;205(7):1007\u201313."},{"key":"i1547-3317-50-6-409-bib17","series-title":"Vet Rad","first-page":"178","article-title":"Sonographic evaluation of the cranial mediastinum in small animals","volume":"32","author":"Konde","year":"1991","unstructured":"Konde\n              LJ\n            , SpauldingK. Sonographic evaluation of the cranial mediastinum in small animals. Vet Rad1991;32:178\u201384."},{"issue":"4","key":"i1547-3317-50-6-409-bib18","series-title":"J Am Vet Med Assoc","first-page":"514","article-title":"Ultrasonography of noncardiac thoracic diseases in small animals","volume":"195","author":"Stowater","year":"1989","unstructured":"Stowater\n              JL\n            , LambCR. Ultrasonography of noncardiac thoracic diseases in small animals. J Am Vet Med Assoc1989;195(4):514\u201320."},{"key":"i1547-3317-50-6-409-bib19","series-title":"Practical veterinary ultrasound: the heart, vessels, lungs, and mediastinum","first-page":"83","author":"Cartee","year":"1995","unstructured":"Cartee\n              R\n            , SelcerB, HudsonJ. Practical veterinary ultrasound: the heart, vessels, lungs, and mediastinum. Philadelphia: Williams and Wilkins; 1995:83."},{"issue":"1","key":"i1547-3317-50-6-409-bib20","series-title":"Acta Radiol","first-page":"25","article-title":"Ultrasonography of thymoma with pathologic correlation","volume":"35","author":"Sakai","year":"1994","unstructured":"Sakai\n              F\n            , SoneS, KawaiT. Ultrasonography of thymoma with pathologic correlation. Acta Radiol1994;35(1):25\u20139."},{"issue":"2","key":"i1547-3317-50-6-409-bib21","series-title":"Chest","first-page":"399","article-title":"Evaluation of ultrasonically guided biopsies of mediastinal masses","volume":"100","author":"Yu","year":"1991","unstructured":"Yu\n              CJ\n            , YangPC, ChangDB. Evaluation of ultrasonically guided biopsies of mediastinal masses. Chest1991;100(2):399\u2013405."},{"issue":"4","key":"i1547-3317-50-6-409-bib22","series-title":"Acta Cytol","first-page":"404","article-title":"Utility of fine needle aspiration cytology in mediastinal lesions: a clinicopathologic study of 1617 cases from a single institution","volume":"52","author":"Goel","year":"2008","unstructured":"Goel\n              D\n            , PrayagaAK, SundaramC. Utility of fine needle aspiration cytology in mediastinal lesions: a clinicopathologic study of 1617 cases from a single institution. Acta Cytol2008;52(4):404\u201311."}],"container-title":["Journal of the American Animal Hospital Association"],"original-title":[],"link":[{"URL":"https:\/\/jaaha.kglmeridian.com\/view\/journals\/aaha\/50\/6\/article-p409.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/meridian.allenpress.com\/jaaha\/article-pdf\/50\/6\/409\/1334751\/jaaha-ms-6132.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/jaaha.kglmeridian.com\/downloadpdf\/journals\/aaha\/50\/6\/article-p409.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/jaaha.kglmeridian.com\/downloadpdf\/journals\/aaha\/50\/6\/article-p409.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,21]],"date-time":"2025-11-21T16:00:42Z","timestamp":1763740842000},"score":1,"resource":{"primary":{"URL":"https:\/\/jaaha.kglmeridian.com\/view\/journals\/aaha\/50\/6\/article-p409.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":22,"journal-issue":{"issue":"6"},"URL":"https:\/\/doi.org\/10.5326\/jaaha-ms-6132","relation":{},"ISSN":["0587-2871","1547-3317"],"issn-type":[{"value":"0587-2871","type":"print"},{"value":"1547-3317","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014]]}}}