Patomorfologia mięsaków

• Autorzy: Madej J.A.

Warianty tytułu

EN

Pathomorphology of the sarcomas

• Języki publikacji: PL

Abstrakty

EN

Sarcomas (sarcomata – sa) are neoplasms that have a mesenchymal origin or are differentiating in that direction. Their growth is chaotic and progressive: the cells divide constantly in time and tumor space. They can be caused by viruses, chemical compounds, physical factors or even autoimmune reactions. They result from a disruption in a balance between protooncogenes and suppressor genes. This can be an effect of the accumulation of mutation within those genes, often with the participation of viruses that can modify the cell’s genetic information. The changes in genes are transmitted from one generation of cells to subsequent ones and are irreparable and progressive. Sarcomas are vimentin-positive, S-100-negative, LCA-negative and HMB-45- -negative. They can show positive or negative reactions to keratin and EM. The frequency of sarcomas as compared to cancers is like 1 : 50 and so they constitute approximately 1% of malignant neoplasms in humans. In animals this ratio is reversed: sarcomas (except in the mammary gland and skin) are far more common than carcinomas. Sarcomas tumors are accompanied by various disturbances in circulation, regressive changes (degeneration, necrosis) and inflammation, including immune reactions or a response to bacterial or fungal co-infection. Sarcomas, similarly to cancers, show neoplastic cannibalism; i.e. an ability of one cell to absorb another cell. Moreover, they are less mature than mother and can show histoformative features. They also manifest a wide range of malignancy features. Because of their localization in deeply lying tissues, the diagnosis is often delayed and the clinical prognosis is poor.

Słowa kluczowe

PL

onkologia; nowotwory; miesaki; patomorfologia; roznicowanie sie komorek; typy roznicowania; kariotyp; zmiany kariotypu; zmiany morfologiczne; markery nowotworowe; etiologia

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2018
• Tom: 74
• Numer: 07
• Opis fizyczny: s.411-420,tab.,bibliogr.

Twórcy

autor

Madej J.A.

• Zakład Patomorfologii i Weterynarii Sądowej, Katedra Patologii, Wydział Medycyny Weterynaryjnej, Uniwersytet Przyrodniczy we Wrocławiu, ul.Norwida 31, 50-375 Wrocław

Bibliografia

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Identyfikatory

DOI

10.21521/mw.6032