Tumour or haemorrhage?: Differential diagnosis of an unknown mass within the brain of a budgerigar (Melopsittacus undulatus) using a novel imaging pipeline
Tatiana Vasquez, Paul M. Gignac, Peter Brewer, Maria Eugenia Leone Gold
{"title":"Tumour or haemorrhage?: Differential diagnosis of an unknown mass within the brain of a budgerigar (Melopsittacus undulatus) using a novel imaging pipeline","authors":"Tatiana Vasquez, Paul M. Gignac, Peter Brewer, Maria Eugenia Leone Gold","doi":"10.1002/vrc2.899","DOIUrl":null,"url":null,"abstract":"We report on a previously healthy zoo specimen of an adult budgerigar (<jats:italic>Melopsittacus undulatus</jats:italic>, obtained with permission from Southwick's Zoo) found deceased in its enclosure. To assess cause of death and ensure the absence of an infectious neoplasia, we used an integrated multiscale brain‐imaging workflow, previously only used on mammals. The specimen was imaged with microcomputed tomography before and after enhancing soft‐tissue contrast with diffusible iodine‐based contrast‐enhanced microcomputed tomography. Scans revealed an orbital blowout fracture and an unidentified large mass across majority of the diencephalon, striatum and midbrain caudal to the right orbit. After destaining, neural pathohistology confirmed the mass as a brain haemorrhage with no evidence of neoplasia or inflammation. We conclude that this specimen died of head trauma, likely from a head‐on collision within its enclosure. This multiscale imaging workflow (diffusible iodine‐based contrast‐enhanced microcomputed tomography followed by destaining and pathohistology) can improve our evaluation of differential diagnoses in avian specimens.","PeriodicalId":23496,"journal":{"name":"Veterinary Record Case Reports","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Veterinary Record Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/vrc2.899","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
We report on a previously healthy zoo specimen of an adult budgerigar (Melopsittacus undulatus, obtained with permission from Southwick's Zoo) found deceased in its enclosure. To assess cause of death and ensure the absence of an infectious neoplasia, we used an integrated multiscale brain‐imaging workflow, previously only used on mammals. The specimen was imaged with microcomputed tomography before and after enhancing soft‐tissue contrast with diffusible iodine‐based contrast‐enhanced microcomputed tomography. Scans revealed an orbital blowout fracture and an unidentified large mass across majority of the diencephalon, striatum and midbrain caudal to the right orbit. After destaining, neural pathohistology confirmed the mass as a brain haemorrhage with no evidence of neoplasia or inflammation. We conclude that this specimen died of head trauma, likely from a head‐on collision within its enclosure. This multiscale imaging workflow (diffusible iodine‐based contrast‐enhanced microcomputed tomography followed by destaining and pathohistology) can improve our evaluation of differential diagnoses in avian specimens.
期刊介绍:
Vet Record Case Reports is an online resource that publishes articles in all fields of veterinary medicine and surgery so that veterinary professionals, researchers and others can easily find important information on both common and rare conditions. Articles may be about a single animal, herd, flock or other group of animals managed together. Common cases that present a diagnostic, ethical or management challenge, or that highlight aspects of mechanisms of injury, pharmacology or histopathology are deemed of particular educational value. All articles are peer reviewed and copy edited before publication.