{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T16:09:07Z","timestamp":1764259747515},"reference-count":9,"publisher":"Akademiai Kiado Zrt.","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2011,12,1]]},"abstract":"<jats:p>The authors describe a solitary adenoma in a 5.5-year-old female Budgerigar (<jats:italic>Melopsittacus undulatus<\/jats:italic>). The tumour was partially blocking the lumen of the proventriculus and filled it almost completely. Decreased passage of food towards the gizzard and the intestines developed in the bird as result of the obstruction, which periodically hindered the passage, leading to slow emaciation. An epithelial tumour composed of irregular glandular acini was diagnosed by histological examination. Immunohistochemical reaction with pancytokeratin showed a positive cytoplasmic reaction both in the neoplastic and the normal glandular structures.<\/jats:p>","DOI":"10.1556\/avet.2011.031","type":"journal-article","created":{"date-parts":[[2011,11,15]],"date-time":"2011-11-15T11:21:59Z","timestamp":1321356119000},"page":"439-444","source":"Crossref","is-referenced-by-count":7,"title":["Solitary adenoma in the proventriculus of a budgerigar (Melopsittacus undulatus) diagnosed by immunochemistry \u2014 Short communication"],"prefix":"10.1556","volume":"59","author":[{"given":"G\u00e1l","family":"J\u00e1nos","sequence":"first","affiliation":[{"name":"1 Szent Istv\u00e1n University Division of Exotic and Wild Animal Medicine, Department of Pathology and Forensic Veterinary Medicine Istv\u00e1n u. 2 H-1078 Budapest Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mikl\u00f3s","family":"Maros\u00e1n","sequence":"additional","affiliation":[{"name":"2 Szent Istv\u00e1n University Department of Animal Breeding, Nutrition and Laboratory Animal Science, Faculty of Veterinary Science Istv\u00e1n u. 2 H-1078 Budapest Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Attila","family":"Kozma","sequence":"additional","affiliation":[{"name":"3 Homokt\u00f6vis Veterinary Hospital Budapest Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M\u00edra","family":"M\u00e1ndoki","sequence":"additional","affiliation":[{"name":"1 Szent Istv\u00e1n University Division of Exotic and Wild Animal Medicine, Department of Pathology and Forensic Veterinary Medicine Istv\u00e1n u. 2 H-1078 Budapest Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"425","reference":[{"key":"1","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1080\/03079459808419281","article-title":"Gizzard adenocarcinoma in an aged Humboldt penguin (Spheniscus humboldti)","volume":"27","author":"Cho K. 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