Description Of An Anaplastic Rhabdomyosarcoma In A Cockatiel (<i>Nymphicus Hollandicus</i>)

Ober, Ciprian; Florin, Gal Adrian; Mitre, Viorel; Peștean, Cosmin; Taulescu, Marian; Bel, Lucia; Cătoi, C.; Oană, Liviu

doi:10.1515/acve-2015-0036

Cited by 2 publications

(2 citation statements)

References 8 publications

(23 reference statements)

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“…52 In birds, there are numerous reports of these tumors affecting the integument, 2,53 connective tissues, 54,55 reproductive tract, 2,3,6,7,46 cardiorespiratory system, 3,46,[56][57][58] gastrointestinal tract, 7,59 kidney, 60 and musculoskeletal system. 2,[61][62][63][64] In this study, the reproductive tract and the integument were the most frequently identified anatomical locations of mesenchymal cell tumors in budgerigars.…”

Section: Discussionmentioning

confidence: 76%

“…Rhabdomyosarcomas have rarely been described in birds but have been observed as individual case reports in Falconiformes, 63,80 Accipitriformes, 81 Columbiformes, 61 Passeriformes, 62 and Galliformes. 82 In Psittaciformes, rhabdomyosarcomas have been documented in cockatiels 64 and budgerigars. 83,84 Sites of origin of avian rhabdomyosarcomas include the periocular tissues, 80,82 tongue, 83 heart, 81 and flight muscles.…”

Section: Discussionmentioning

confidence: 99%

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Survey of the Clinical, Cytological, and Histopathological Features Associated with Neoplasms in Captive Avian Species in Melbourne, Australia

Sutherland,

Luk,

Courtman

et al. 2023

Journal of Avian Medicine and Surgery

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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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Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Survey of the Clinical, Cytological, and Histopathological Features Associated with Neoplasms in Captive Avian Species in Melbourne, Australia

Sutherland,

Luk,

Courtman

et al. 2023

Journal of Avian Medicine and Surgery

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Retrobulbar Fibrosarcoma in a Sheep

et al. 2016

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This report describes a case of a retrobulbar fi brosarcoma in a 4-year-old female sheep. A big tumor was protruding from the orbit but not invading the surrounding tissue and was easily removed surgically. The grayish colored mass was 19x13x8 cm in size and hard. The surface of the tumor was irregular and ulcerated. Marked hemorrhage and necrotic areas were present across the whitish cut surface. Histopathologically, the mass was composed of spindle shaped, anaplastic pleomorphic cells. Masson's trichrome staining revealed a collagenous matrix in the tissue. Immunohistochemically, the mass was positive for vimentin and proliferating cell nuclear antigen but negative for smooth muscle actin, desmin, glial fi brilar acidic protein and S100 protein antibodies. According to histopathological and immunohistochemical fi ndings the tumor was diagnosed as fi brosarcoma. To the authors' knowledge, this is the fi rst report of ocular fi brosarcoma in a sheep.

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Description Of An Anaplastic Rhabdomyosarcoma In A Cockatiel (Nymphicus Hollandicus)

Cited by 2 publications

References 8 publications

Survey of the Clinical, Cytological, and Histopathological Features Associated with Neoplasms in Captive Avian Species in Melbourne, Australia

Survey of the Clinical, Cytological, and Histopathological Features Associated with Neoplasms in Captive Avian Species in Melbourne, Australia

Retrobulbar Fibrosarcoma in a Sheep

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