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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] [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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2
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Injection-Site Sarcoma in Three Village Weaver Birds (Ploceus cucullatus) Associated with Autogenous Yersinia pseudotuberculosis Vaccination. J Comp Pathol 2022; 199:43-50. [DOI: 10.1016/j.jcpa.2022.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/18/2022] [Accepted: 09/18/2022] [Indexed: 11/22/2022]
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Bertram CA, Halter L, Feyer S, Klopfleisch R, Müller K. Retrobulbar Adenocarcinoma with Subconjunctival Extension in a Common Buzzard (Buteo buteo). J Avian Med Surg 2022; 36:78-84. [DOI: 10.1647/20-00073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4
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Cappelleri A, Bertola L, Caniatti M, Recordati C. Diagnostic challenge in veterinary pathology: Disseminated tumor in a young dog. Vet Pathol 2021; 59:394-396. [DOI: 10.1177/03009858211067464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Andrea Cappelleri
- Department of Veterinary Medicine, University of Milan, Lodi, Italy
- Mouse and Animal Pathology Laboratory (MAPLab), Fondazione Unimi, Milano, Italy
| | - Luca Bertola
- Department of Veterinary Medicine, University of Milan, Lodi, Italy
- Mouse and Animal Pathology Laboratory (MAPLab), Fondazione Unimi, Milano, Italy
| | - Mario Caniatti
- Department of Veterinary Medicine, University of Milan, Lodi, Italy
| | - Camilla Recordati
- Department of Veterinary Medicine, University of Milan, Lodi, Italy
- Mouse and Animal Pathology Laboratory (MAPLab), Fondazione Unimi, Milano, Italy
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Henriksen MDL, Sharkey L, Franzen-Klein D, Wünschmann A, Teixeira LBC, Dubielzig R, Willette M. Bilateral Anterior Uveitis in a Northern Saw-whet Owl ( Aegolius acadicus) With a Metastatic Pectoral Malignant Mesenchymoma. J Avian Med Surg 2020; 33:171-178. [PMID: 31251505 DOI: 10.1647/2017-326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A captive, adult, male northern saw-whet owl (Aegolius acadicus) was examined for blepharospasm of the left eye. The owl was diagnosed with bilateral anterior uveitis and a corneal ulceration in the left eye. It was treated with oral and topical nonsteroidal anti-inflammatory medications and a topical antibiotic. Multiple recheck examinations and medication adjustments were performed over the next 4 months, at the end of which time the bilateral anterior uveitis was controlled with a topical nonsteroidal anti-inflammatory applied 3 times per week to both eyes. The owl was re-examined 2 months later after 2 suspected neurologic episodes. On physical examination, the owl was quiet and had difficulty standing and ambulating. Five firm multilobular and immobile masses were identified overlying the pectoral muscle and sternum. Fine-needle aspiration from 1 mass revealed neoplastic cells consistent with a sarcoma. The owl was euthanatized. On the basis of results of histopathologic examination, the mass was diagnosed as a pleomorphic spindle cell sarcoma with features of rhabdomyosarcoma, liposarcoma, and osteosarcoma. Numerous tumor cells were immunopositive for myoglobin and desmin, indicating striated muscle origin. Although a metastatic lesion was present in 1 adrenal gland, lesions of inflammation or neoplasia were absent in either eye on histopathologic examination. This report describes an apparent ocular manifestation of systemic disease in an avian species with clinically diagnosed recurrent anterior uveitis.
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Affiliation(s)
- Michala de Linde Henriksen
- Comparative Ophthalmology, Department of Veterinary Clinical Sciences, University of Minnesota, St Paul, MN 55108, USA
| | - Leslie Sharkey
- Clinical Pathology, Department of Veterinary Clinical Sciences, University of Minnesota, St Paul, MN 55108, USA
| | - Dana Franzen-Klein
- The Raptor Center, College of Veterinary Medicine, University of Minnesota, St Paul, MN 55108, USA
| | - Arno Wünschmann
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St Paul, MN 55108, USA
| | - Leandro B C Teixeira
- Department of Pathobiology Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA
| | - Richard Dubielzig
- Department of Pathobiology Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA
| | - Michelle Willette
- The Raptor Center, College of Veterinary Medicine, University of Minnesota, St Paul, MN 55108, USA
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Lanza A, Baldi A, Rossi G, Spugnini EP. Electrochemotherapy for the treatment of an incompletely excised subcutaneous low-grade epithelioid hemangioendothelioma in a budgerigar parakeet ( Melopsittacus undulatus). Open Vet J 2019; 9:269-272. [PMID: 31998622 PMCID: PMC6794392 DOI: 10.4314/ovj.v9i3.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 07/17/2019] [Indexed: 11/17/2022] Open
Abstract
Background Cutaneous tumors are rarely described in avian and are frequently of viral origin. Solid tumors of vascular origin are seldom reported and usually result in difficult management by surgery alone. We describe the outcome of a subcutaneous low-grade epithelioid hemangioendothelioma (EHE) treated with the combination of surgery and electrochemotherapy. Case Description A 10-year-old male budgerigar parakeet (Melopsittacus undulatus) was referred for evaluation of a 2-month non-healing exophytic mass on the left wing. The bird was bright, alert, and responsive, with a 2 × 1 cm proliferative lesion on the wing. Signs of discomfort were elicited by the clinical manipulation of the wing; no other abnormalities were detected during physical evaluation. Following hematological and imaging analysis, the parakeet was anesthetized and the mass was surgically removed. The histopathology report came back with a diagnosis of incompletely excised subcutaneous low-grade EHE. A surgical revision was not feasible due to the anatomical location and tumor extension. Adjuvant electrochemotherapy was chosen to increase the chance of tumor control. Two sessions of electrochemotherapy were performed with a 2-week interval between treatments using intralesional bleomycin followed by trains of permeabilizing electric pulses. Side effects were not observed and the parakeet was disease-free for 12 months when he died of acute renal failure. Conclusion In lieu of the incomplete surgical excision of the tumor, electrochemotherapy resulted in good local control and cosmetic appearance and should be added to the standard oncological therapies for avian.
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Affiliation(s)
| | - Alfonso Baldi
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies Campania University "Luigi Vanvitelli", Caserta, Italy
| | - Giacomo Rossi
- School of Biosciences & Veterinary Medicine, Matelica (MC), University of Camerino, Camerino, Italy
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Robat CS, Ammersbach M, Mans C. Avian Oncology: Diseases, Diagnostics, and Therapeutics. Vet Clin North Am Exot Anim Pract 2017; 20:57-86. [PMID: 27890293 DOI: 10.1016/j.cvex.2016.07.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Companion birds are increasingly living longer due to improved husbandry, nutrition, and veterinary care. As a consequence, a growing number of geriatric disease conditions are diagnosed and managed by veterinarians. Awareness of bird owners of diagnostic and treatment options for neoplastic diseases in humans and domestic animals has led to increasing demand to provide advanced diagnostic and treatment modalities for companion birds diagnosed with neoplasia. Treatment remains challenging in many companion birds due to the lack of information regarding prognosis and efficacy of antineoplastic treatments in these species. There is no established standard of care for most tumors in companion birds.
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Affiliation(s)
- Cecilia S Robat
- Veterinary Emergency Service, Veterinary Specialty Center, 1612 North High Point Road, Middleton, WI 53562, USA.
| | - Melanie Ammersbach
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Building 89, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Christoph Mans
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI 53706, USA.
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Jakab C, Balka G, Szabára A, Csaba C, Pazár P. A case of cutaneous angiolipoleiomyoma (angiomyolipoma) in a budgerigar (Melopsittacus undulatus). Avian Pathol 2013; 42:511-5. [PMID: 24106747 DOI: 10.1080/03079457.2013.843158] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We report a case of cutaneous angiolipoleiomyoma (angiomyolipoma) found on the anterior wall of the ventral part of the abdomen of a three-year-old female budgerigar (Melopsittacus undulatus). Histologic examination of the well-circumscribed, surgically removed tumour (1.5 cm in diameter) showed a benign admixed proliferation of blood vessels of different size, smooth muscle bundles, and mature adipose tissue, without evidence of malignancy. Endothelial cells of the haemangioma component were positive for claudin-5 endothelium-specific immunohistochemical marker, and the leiomyoma component was positive for α-smooth muscle actin. The differentiated lipocytes showed S-100 protein positivity. The Ki-67 labelling index was 2 to 3%. The mesenchymal tumour was negative for HMB45 melanocytic immunhistochemical marker. To the best of our knowledge, this is the first report describing a cutaneous angiolipoleiomyoma in a budgerigar with histological and immunohistochemical analyses.
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Affiliation(s)
- Csaba Jakab
- a Department of Pathology and Forensic Veterinary Medicine, Faculty of Veterinary Science , Szent István University , Budapest , Hungary
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Watson VE, Murdock JH, Cazzini P, Schnellbacher R, Divers SJ, Sakamoto K. Retrobulbar adenocarcinoma in an Amazon parrot (Amazona autumnalis). J Vet Diagn Invest 2013; 25:273-6. [DOI: 10.1177/1040638712474817] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Retrobulbar neoplasms are not common in mammals and are even more infrequently seen in nonmammalian species. The current report describes a retrobulbar mass creating exophthalmia and neurologic signs in a red-lored Amazon parrot ( Amazona autumnalis). A 27-year-old female parrot presented for a 3-day history of anorexia and a 2-week history of periocular soft tissue swelling and exophthalmia of the right eye. Physical examination revealed 9% dehydration and right eye exophthalmia with inability to retropulse the globe. A fine-needle aspirate was performed, and cytologic evaluation revealed necrotic debris with scattered clusters of epithelial cells, moderate numbers of macrophages, and few heterophils. Given the possibility of neoplasia and paucity of treatment options, the owners elected euthanasia and submitted the body for necropsy. A large, fluctuant, friable, red, retrobulbar mass with multiple areas of hemorrhage, on cut surface, was noted at necropsy. Histologically, the mass was composed of neoplastic, cuboidal to columnar epithelial cells, forming rosette-like glandular structures, admixed with abundant necrotic debris. The neoplastic cells were strongly positive for cytokeratin (AE1/AE3) by immunohistochemistry. Based on histopathology and immunohistochemistry, the mass was diagnosed as an adenocarcinoma.
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Affiliation(s)
- Victoria E. Watson
- Departments of Pathology (Watson, Murdock, Cazzini, Sakamoto), College of Veterinary Medicine, University of Georgia, Athens, GA
- Small Animal Medicine and Surgery (Schnellbacher, Divers), College of Veterinary Medicine, University of Georgia, Athens, GA
| | - Jessica H. Murdock
- Departments of Pathology (Watson, Murdock, Cazzini, Sakamoto), College of Veterinary Medicine, University of Georgia, Athens, GA
- Small Animal Medicine and Surgery (Schnellbacher, Divers), College of Veterinary Medicine, University of Georgia, Athens, GA
| | - Paola Cazzini
- Departments of Pathology (Watson, Murdock, Cazzini, Sakamoto), College of Veterinary Medicine, University of Georgia, Athens, GA
- Small Animal Medicine and Surgery (Schnellbacher, Divers), College of Veterinary Medicine, University of Georgia, Athens, GA
| | - Rodney Schnellbacher
- Departments of Pathology (Watson, Murdock, Cazzini, Sakamoto), College of Veterinary Medicine, University of Georgia, Athens, GA
- Small Animal Medicine and Surgery (Schnellbacher, Divers), College of Veterinary Medicine, University of Georgia, Athens, GA
| | - Stephen J. Divers
- Departments of Pathology (Watson, Murdock, Cazzini, Sakamoto), College of Veterinary Medicine, University of Georgia, Athens, GA
- Small Animal Medicine and Surgery (Schnellbacher, Divers), College of Veterinary Medicine, University of Georgia, Athens, GA
| | - Kaori Sakamoto
- Departments of Pathology (Watson, Murdock, Cazzini, Sakamoto), College of Veterinary Medicine, University of Georgia, Athens, GA
- Small Animal Medicine and Surgery (Schnellbacher, Divers), College of Veterinary Medicine, University of Georgia, Athens, GA
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Affiliation(s)
- Javier G Nevarez
- Louisiana State University School of Veterinary Medicine, Department of Veterinary Clinical Sciences, Baton Rouge, LA 70803, USA
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11
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Snyder LA, Michael H. Alveolar Rhabdomyosarcoma in a Juvenile Labrador Retriever: Case Report and Literature Review. J Am Anim Hosp Assoc 2011; 47:443-6. [DOI: 10.5326/jaaha-ms-5693] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A 7 mo old Labrador retriever presented for evaluation of facial swelling associated with a 5 cm oral mass extending caudally from the upper third premolar on the left side. Cytology revealed an atypical population of round cells of undetermined origin. A diagnosis of alveolar rhabdomyosarcoma (RMS) was reached via histopathology and confirmed with positive immunohistochemical staining for desmin. In humans, RMSs have a well-described round cell cytologic appearance. Few descriptions of veterinary cases of RMS exist. This report describes the cytologic appearance of alveolar RMS in a young dog and both summarizes and compares findings throughout the veterinary and human literature.
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Affiliation(s)
- Laura A. Snyder
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN
| | - Helen Michael
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN
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Manarolla G, Radaelli E, Pisoni G, Sironi G, Rampin T. Rhabdomyosarcoma of the pectoral muscles of a free-living European robin (Erithacus rubecula). Avian Pathol 2008; 37:311-4. [PMID: 18568658 DOI: 10.1080/03079450802043767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
An adult free-living European robin (Erithacus rubecula) with a large, firm, subcutaneous mass on the pectoral muscle was examined. The bird was unable to fly and died spontaneously. Necropsy revealed a yellowish, bilobate mass almost completely replacing the pectoral muscles with extensive osteolysis of the keel bone. Histopathology revealed a poorly demarcated, highly cellular sarcomatous tumour with metastases to the lungs, pulmonary blood vessels and heart. Immunohistochemistry was negative for neuron-specific enolase, S-100 protein and the p-27 major capsid protein of avian leukosis viruses. The homogeneously positive immunolabelling for vimentin and scattered positivity for myoglobin and desmin suggested a diagnosis of rhabdomyosarcoma. A retrospective examination of the records for 194 birds of the thrush family, including 64 robins submitted over a 20-year period, showed no diagnoses of neoplasia.
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Affiliation(s)
- G Manarolla
- Sezione di Anatomia Patologica Veterinaria e Patologia Aviare, Universita degli Studi di Milano, Milano, Italy.
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