MESODERMAL ELEMENTS IN CEREBRAL AND CEREBELLAR ASTROCYTOMA
Państwowy Zakład Wydawnictw Lekarskich
A study of 79 cases of astrocytoma of the brain and cerebellum was made. In the majority of the cases the astrocytomas were moderately and not abundantly vascularized, although a few tumors with a rich blood supply were found. The distribution of the blood vessels is related to cellular structure of tumour and type of substrate invaded. Among structural changes in the blood vessels of astrocytomas, fibrosis of the walls was most frequent. Alterations of the vascular endothelium with its activation and proliferation were less common; capillarization of adventitia and lumen of the large blood vessels was rare. Mural hyalinization and calcifications, as well as necrosis in the blood vessels were comparatively rare. A glomerular or convoluted type of vascularization were occasionally encountered. Vascular sinuses and angioma-like formations were seen, in individual cases; this type formed the basis of hemorrhagic accidents in the course of the tumor. Extravascular mesodermal elements in the tumor were meningeal or vascular in origin. The first of these occured when the tumor invaded or they occured the meninges The second type was an expression of reparative alterations in the form of fibrous vascular walls circumscribing areas of necrosis in the tumor, or as thin, intervascular reticulin bridges.
Licencja Creative Commons Uznanie autorstwa 4.0
Zasób chroniony prawem autorskim. [CC BY 4.0 Międzynarodowe] Korzystanie dozwolone zgodnie z licencją Creative Commons Uznanie autorstwa 4.0, której pełne postanowienia dostępne są pod adresem: ; -
Instytut Medycyny Doświadczalnej i Klinicznej im. M. Mossakowskiego Polskiej Akademii Nauk
Biblioteka Instytutu Medycyny Doświadczalnej i Klinicznej im. M. Mossakowskiego PAN
1 lut 2022
4 kwi 2019
306
https://www.rcin.org.pl/publication/91594
Nazwa wydania | Data |
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Mossakowski, Mirosław Jan (1929 - 2001), 1961, ELEMENTY POCHODZENIA MEZODERMALNEGO W GWIAŹDZIAKACH MÓZGU I MÓŻDŻKU | 1 lut 2022 |
Mossakowski, Mirosław Jan (1929–2001)
Mossakowski, Mirosław Jan (1929–2001)
Mossakowski, Mirosław Jan (1929–2001)
Mossakowski, Mirosław Jan (1929–2001)