Abstract
Thymoma is a primary mediastinal neoplasm arising from or exhibiting differentiation towards thymic epithelial cells, typically with the presence of non-neoplastic lymphocytes. A 13-year-old male Mynah bird (acridotheres tristis) was presented for evaluation of a 2.3 × 1.5 × 1.0 cm mass in the left ventrolateral cervical region. The clinical signs, radiology, cytohistopathology and immunohistochimy findings related to the thymoma are presented. These findings indicated that the tumor was a type AB thymoma according to the World Health Organization (WHO) and veterinary classification. Thymomas are rarely reported in avian species and this is the first report in a Mynah bird.Virtual slidesThe virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1159525819982779.
Highlights
(acridotheres tristis) was presented for evaluation of a 2.3 × 1.5 × 1.0 cm mass in the left ventrolateral cervical region
Thymomas are found in older animals [4], and they are rarely reported in avian species and have only been docu
E contrast to lymphomas, there is no evidence of a etiology of thymomas in humans and domestic animals
Summary
Thymomas may be categorized in veterinary medicine as lymphocyte predominant, epithelial predominant, or mixed [32].When lymphocytes predominate, the neoplasm must be differentiated from thymic lymphoma. Nosticator in animals, the use of a pan-specific cocktail of The thymomas examined in our study showed massive antibodies for cytokeratins is sufficient for the diagnosis of local growth with compression, albeit not invasion, of these tumors in veterinary medicine. Lymphatic congestion was Thymoma should be differentiated from other anterior seen in the cervical lymph nodes and based on their mediastinal neoplasms with epithelial and/or lymphoid microscopic features of malignancy tumor (such as areas differentiation, including Non-Hodgkin (NHL) and of high cellularity, cellular pleomorphism, high mitotic.
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