title: Solitary adenoma in the proventriculus of a budgerigar (Melopsittacus undulatus) diagnosed by immunochemistry - short communication.
abstract: The authors describe a solitary adenoma in a 5.5-year-old female Budgerigar (Melopsittacus undulatus). 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.
authors.affiliation: Szent István University Division of Exotic and Wild Animal Medicine, Department of Pathology and Forensic Veterinary Medicine István u. 2 H-1078 Budapest Hungary.
authors.forename: Gál
authors.initials: G
authors.lastname: János
authors.forename: Miklós
authors.initials: M
authors.lastname: Marosán
authors.forename: Attila
authors.initials: A
authors.lastname: Kozma
authors.forename: Míra
authors.initials: M
authors.lastname: Mándoki
mesh_terms: D000236:Adenoma / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D000818:Animals; D001715:Bird Diseases / Q000175:diagnosis* / Q000473:pathology; D017809:Fatal Outcome; D005260:Female; D007120:Immunochemistry; D046408:Melopsittacus; D011531:Proventriculus / Q000473:pathology*; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*