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Sutherland M, Luk K, Courtman N, Ploeg R. Survey of the Clinical, Cytological, and Histopathological Features Associated with Neoplasms in Captive Avian Species in Melbourne, Australia. J Avian Med Surg 2023; 37:243-265. [PMID: 37962318 DOI: 10.1647/20-00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Over a 3.5-year period, tissue samples from 141 companion and aviary birds with clinically suspected, naturally occurring solid neoplasms were collected via surgical biopsy (n = 53) or at necropsy examination (n = 88) from a population of birds presenting to an avian veterinary clinic in Melbourne, Australia. Neoplastic processes were identified in 73.7% (n = 104) of samples, with 83.7% (n = 87) being interpreted as malignant neoplasia and 16.3% (n = 17) being interpreted as benign neoplasia. The overall estimated prevalence of neoplasia in the study population (n = 5125) was 2.45% (95% confidence interval, 2-2.97%). The gastrointestinal and reproductive tracts were the most commonly affected systems. The most common presenting signs were nonspecific and included lethargy, coelomic distension, and inappetence. In 59 cases, fine-needle aspirates (FNAs) and impression smears were also obtained and evaluated cytologically. The accuracy of cytology for detecting neoplasia in birds and for determining whether a neoplastic process was benign or malignant was assessed by using histopathology as the "gold standard." There was complete agreement between the cytological and histopathological diagnoses in 72.8% (43/59) of cases. Cytology correctly identified 87.5% of these cases (35/40) as malignant neoplasms and 55.6% (5/9) as benign processes. There was no significant difference between the use of cytology and histopathology for the detection of malignant neoplasia in birds (P = 0.185). The accuracies of FNAs and impression smears for examining avian tumors were also compared. Overall, the best cell preservation was obtained by performing impression smears from tissues, with 62.2% (n = 28) returning high cellularity for cytological examination, compared to 53.8% (n = 14) when samples were obtained by FNA. This study provides an overview of the types and prevalence of neoplasms in a captive bird population from Australia, correlates physical examination findings with tumor types, and provides evidence that cytology is a reliable preliminary diagnostic tool for detecting neoplasia in birds.
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Affiliation(s)
| | - Kathy Luk
- Department of Veterinary Pathology, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, VIC 3030, Australia
| | - Natalie Courtman
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, VIC 3030, Australia
| | - Richard Ploeg
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, VIC 3030, Australia
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Moreno AA, Tully TN, Metcalf K, Dehghanpir S, Van V, Bentley A. What is Your Diagnosis? J Avian Med Surg 2023; 36:426-433. [PMID: 36935216 DOI: 10.1647/22-00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Affiliation(s)
- Adam A Moreno
- Louisiana State University, School of Veterinary Medicine, Department of Veterinary Clinical Sciences Baton Rouge, LA 70803, USA
| | - Thomas N Tully
- Louisiana State University, School of Veterinary Medicine, Department of Veterinary Clinical Sciences Baton Rouge, LA 70803, USA
| | - Katie Metcalf
- Louisiana State University, School of Veterinary Medicine, Department of Veterinary Clinical Sciences Baton Rouge, LA 70803, USA
| | - Shannon Dehghanpir
- Louisiana State University, School of Veterinary Medicine, Department of Veterinary Clinical Sciences Baton Rouge, LA 70803, USA
| | - Victoria Van
- Louisiana State University, School of Veterinary Medicine, Department of Veterinary Clinical Sciences Baton Rouge, LA 70803, USA
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Kirk N, Echols MS, Reavill D, Gasper D, Wilcox C. Diagnosis of Seminoma With Metastasis to the Brain and Kidneys in a Moluccan Eclectus (Eclectus roratus) Using Advanced Contrast Based Imaging. J Avian Med Surg 2022; 36:325-332. [DOI: 10.1647/21-00024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Barger AM, Welle K, Athey JM, Hamel P, Bailey K. What is your diagnosis? A coelomic mass in a duck. Vet Clin Pathol 2020; 49:684-685. [PMID: 33381871 DOI: 10.1111/vcp.12910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/21/2020] [Accepted: 05/05/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Anne M Barger
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, USA
| | - Kenneth Welle
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, USA
| | - Jillian M Athey
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, USA
| | - Philip Hamel
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, USA
| | - Keith Bailey
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, USA
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Sullivan PJ, Fasina OO, BVSc ACC. Bilateral Malignant Seminoma With Ventricular Metastasis in a Bald Eagle ( Haliaeetus leucocephalus). J Avian Med Surg 2018; 32:240-245. [PMID: 30204011 DOI: 10.1647/2017-287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A 30-year-old bald eagle ( Haliaeetus leucocephalus) was presented with a history of hyporexia and lethargy. Results of initial hematologic testing, biochemical analysis, and fecal examination were unremarkable, and clinical signs did not resolve with supportive care and management changes. Results of echocardiography, based on auscultation of a murmur, and coelomic endoscopy, based on the presence of a soft tissue opacity on radiographs, as well as an aspergillosis panel were largely unsuccessful in determining a definitive diagnosis. Euthanasia was performed after the eagle did not recover from anesthesia after endoscopy. Necropsy results demonstrated bilateral testicular seminomas with metastases to the ventriculus. This case demonstrates an abnormal metastasis of a common reproductive tumor in an avian species.
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Calvo Carrasco D, Sabater González M. Reproductive Disorders in Commonly Kept Fowl. Vet Clin North Am Exot Anim Pract 2017; 20:509-538. [PMID: 28169183 DOI: 10.1016/j.cvex.2016.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Backyard poultry and other commonly kept fowl species are often kept for their ability to lay eggs. Reproductive disease is common in fowl species. Despite being classified as food-producing species, they can be considered valuable pets, and the demand for adequate veterinary care is constantly increasing. The clinician should be familiar with the different abnormalities and the potential treatment options. Fowl species have been traditionally an anatomic, physiologic, and experimental model for avian medicine; however, information about treatment options is often limited and extrapolated from other species.
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Affiliation(s)
- Daniel Calvo Carrasco
- Great Western Exotics, Vets-Now Referrals, Unit 10 Berkshire House, County Business Park, Shrivenham Road, Swindon SN1 2NR, UK.
| | - Mikel Sabater González
- Avian, Reptile and Exotic Pet Hospital, University of Sydney, 415 Werombi Road, Brownlow Hil, New South Wales 2570, Australia
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Wernick MB, Tobias JR, Moeller RB, Barnes J, Palmieri C, Shivaprasad HL. Bilateral Malignant Seminomas in Two Unrelated, Aged Trumpeter Hornbills (Bycanistes buccinator). J Avian Med Surg 2015; 29:125-9. [PMID: 26115212 DOI: 10.1647/2014-022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Seminomas occur infrequently in birds. Two cases of bilateral malignant seminomas in unrelated trumpeter hornbills (Bycanistes buccinator) are described. Case 1 was a 22-year-old trumpeter hornbill submitted for necropsy because of sudden death at a zoo in California. Postmortem examination revealed multiple masses within the body cavity, 2 of which replaced both testes. Case 2 was a 19-year-old trumpeter hornbill at a zoo in North Carolina that underwent exploratory surgery for a suspected gastrointestinal obstruction. Both testes were diffusely enlarged, compressing and replacing the adjacent kidneys. In both birds, the masses were composed of discrete, round to polyhedral cells, typical of seminomas. Examination of the ancestry of the hornbills showed they were unrelated to each other, suggesting a potential predisposition for these birds to develop seminomas.
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Sesterhenn R, Ferreira T, Fallavena L, Pianta C, Moraes H, Kindlein L. Sertolioma unilateral como causa de morte súbita por hemorragia interna em ganso Anser cygnoides. ARQ BRAS MED VET ZOO 2014. [DOI: 10.1590/1678-6236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Um ganso adulto macho (Anser cygnoides), da família Anseriformes, de idade desconhecida, proveniente de uma criação da Universidade Luterana do Brasil, foi encontrado morto, sem apresentar histórico clínico, e foi submetido à investigação post mortem no Setor de Patologia Veterinária do Hospital Veterinário. Com base nos achados de necropsia e no exame histopatológico, definiu-se como causa da morte do animal hemorragia interna em razão da ruptura de vasos sanguíneos em uma neoplasia no testículo direito (sertolioma), com metástase no fígado.
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Affiliation(s)
| | | | | | | | | | - L. Kindlein
- Universidade Federal do Rio Grande do Sul, Brazil
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Abstract
This study reports the gross and microscopic pathology of naturally occurring neoplasms in adult pigeons that were presented for necropsy at the Indiana Animal Disease Diagnostic Laboratory from 2001 to 2011. The study population consisted of white carneau and mixed-breed pigeons used in behavioral studies in the Department of Psychological Sciences at Purdue University. Twelve types of neoplasms or proliferative disorders were identified in 28 of 83 pigeons (33.7%). Five pigeons had two or three types of neoplasms-proliferative disorders. Of the 83 pigeons, 11 (13.3%) had seminoma, five (6.0%) had thyroid adenoma, four (4.8%) had lymphoma, four (4.8%) had adenocarcinoma of female reproductive tract origin, two (2.4%) had pulmonary carcinoma, and two (2.4%) had cutaneous vascular hamartomas. Also identified were single incidences of dysgerminoma, mesothelioma, liposarcoma, cloacal papilloma, cloacal adenocarcinoma, and gizzard carcinoma. The most frequently occurring tumor was seminoma; 7/11 cases effaced both testicles and 3/11 cases had metastasis to the liver or kidney. The relatively high prevalence of neoplasms in pigeons in the present study is most likely related to the advanced ages of pigeons kept in the research colony.
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Affiliation(s)
- Nozomi Shimonohara
- Animal Disease Diagnostic Laboratory, College of Veterinary Medicine, Purdue University, 406 South University Street, West Lafayette, IN 47907, USA
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Abstract
This paper describes the pathologic features of a malignant Sertoli cell tumor found in an adult goose (Anser cygnoides domesticus). At necropsy, in addition to one large tumor mass (15 cm in diameter), multiple small tumor masses were observed over the peritoneum and mesenterium in the coelomic cavity. The large tumor mass was composed of sheets, lobules, and small islands of tumor cells, and elongated tumor cells lying perpendicular to fibrous connective tissue were characteristic. Such histopathologic characteristics were common to all the tumors. The tumor cells were immunohistochemically positive for neuron-specific enolase and S-100, and some tumor cells contained fine intracytoplasmic pigments that stained red by oil red O staining. These findings, taken together with the fact that one testis was markedly atrophied and bore no tumor cells and the other testis was not discernible, the present case was diagnosed as unilateral malignant Sertoli cell tumor arising from the unilateral testis. To our knowledge, this is the first report of Sertoli cell tumor in the goose.
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Affiliation(s)
- Koji Uetsuka
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan.
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Saied A, Beaufrère H, Tully TN, Wakamatsu N. Bilateral Seminoma With Hepatic Metastasis in a Cockatiel (Nymphicus hollandicus). J Avian Med Surg 2011; 25:126-31. [DOI: 10.1647/2010-012.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Garner MM, Latimer KS, Mickley KA, Ritzman TK, Nordhausen RW. Histologic, immunohistochemical, and electron microscopic features of a unique pulmonary tumor in cockatiels (Nymphicus hollandicus): six cases. Vet Pathol 2009; 46:1100-8. [PMID: 19605913 DOI: 10.1354/vp.08-vp-0136-g-fl] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A unique form of pulmonary malignancy develops in cockatiels. This report describes the gross, histologic, electron microscopic, and immunohistochemical features of this tumor in 6 cockatiels. DNA in-situ hybridization for polyomavirus in the neoplasm was also performed. The tumor was comprised predominantly of compact sheets of anaplastic round to polygonal cells. All tumors had a high mitotic index, and had occasional large clear to slightly basophilic intranuclear inclusions that caused peripheral dispersal or complete masking of chromatin. Tumors were invasive but convincing metastases were not observed. Transmission electron microscopy identified intracytoplasmic intermediate filaments, desmosomes between cells, and intranuclear cytoplasmic invaginations corresponding to the intranuclear inclusions in light microscopic sections. Neoplastic cells stained positive for vimentin, lysozyme, and in 1 bird, pan cytokeratin. All 6 pulmonary neoplasms were negative for avian polyomavirus using the FN-19/FN-40 cocktail and the long VP-1 probe. We propose that these tumors may be poorly differentiated carcinomas of pulmonary or thymic origin.
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Affiliation(s)
- M M Garner
- Northwest ZooPath, Monroe, WA 98272, USA.
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