Musculoskeletal System

doi:10.1002/9780470376836.ch9

Pathology of Pet and Aviary Birds 2003

DOI: 10.1002/9780470376836.ch9

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Musculoskeletal System

Abstract: Simionescu, 0. (1974). Some aspects of We read with interest the article by Ridley the immune response in giardiasis. Third and Ridley on serum antibodies in International Congress of Parasitology,

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Cited by 2 publications

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Rhabdomyosarcoma of the pectoral muscles of a free-living European robin (Erithacus rubecula)

et al. 2008

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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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Rhabdomyosarcoma of the pectoral muscles of a free-living European robin (Erithacus rubecula)

et al. 2008

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Morphological and Immunohistochemical Characterization of a Rhabdomyosarcoma With Systemic Metastasis in an Avian Leukosis Virus (Alv) Infected Chicken

Jeng

Liu

et al. 2016

Taiwan Vet J

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Immunohistochemistry features and cross-reactivity of commercially available antibodies are poorly understood in avian species. Here, we present a confirmative diagnosis of a rare systemically metastatic rhabdomyosarcoma in a seven-month-old male domestic chicken (Gallus domesticus). The animal had multiple grey to dark-red masses in the pectoral muscle, coelomic cavity, and multiple visceral organs. Microscopically, these masses were composed of spindloid neoplastic cells arranged into interwoven and patternless arrays with the presence of binucleated to multinucleated and karyomegalic neoplastic cells. A systemically metastatic rhabdomyosarcoma associated with avian leukosis viruses (ALV) infection was diagnosed by immunohistochemically demonstrating neoplastic cells dispersedly positive for desmin and p27 major capsid protein of ALVs, but diffusely negative for cytokeratin, vimentin, [Formula: see text]-smooth muscle actin, MyoD1, S-100, and neuron-specific enolase. These tumors and internal organs were further characterized positive for subgroups A, B, C, D, or E ALVs, but negative for subgroup J ALV, by polymerase chain reactions. The report suggests the potential of using IHC for a confirmative diagnosis of rhabdomyosarcoma and ALV infection in chickens. The role of endogenous and exogenous ALVs in the rhabdomyosarcoma is also discussed in the present report.

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Musculoskeletal System

Abstract: Simionescu, 0. (1974). Some aspects of We read with interest the article by Ridley the immune response in giardiasis. Third and Ridley on serum antibodies in International Congress of Parasitology,

Cited by 2 publications

References 22 publications

Rhabdomyosarcoma of the pectoral muscles of a free-living European robin (Erithacus rubecula)

Rhabdomyosarcoma of the pectoral muscles of a free-living European robin (Erithacus rubecula)

Morphological and Immunohistochemical Characterization of a Rhabdomyosarcoma With Systemic Metastasis in an Avian Leukosis Virus (Alv) Infected Chicken

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