Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add more filters










Language
Publication year range
1.
Arq Neuropsiquiatr ; 51(4): 452-6, 1993 Dec.
Article in English | MEDLINE | ID: mdl-8147744

ABSTRACT

The purpose of this study was to investigate using light microscopy the fibrocellular components of arachnoid granulations affected by mild and severe subarachnoid hemorrhage. The erythrocytes were in the channels delimited by collagenous and elastic bundles and arachnoid cells, showing their tortuous and inter-communicating row from the pedicle to the fibrous capsule. The core portion of the pedicle and the center represented a principal route to the bulk outflow of cerebrospinal fluid and erythrocytes. In the severe hemorrhage, the fibrocellular components are disorganized, increasing the extracellular channels. We could see arachnoid granulations without erythrocytes, which cells showed big round nucleus suggesting their transformation into phagocytic cells.


Subject(s)
Arachnoid/pathology , Granulation Tissue/pathology , Subarachnoid Hemorrhage/pathology , Adult , Female , Humans , Male , Middle Aged
2.
Arq. neuropsiquiatr ; 51(4): 452-6, dez. 1993. ilus
Article in English | LILACS | ID: lil-127878

ABSTRACT

Por microscopia óptica foram estudados os componentes fibrosos das granulaçöes aracnódes de indivíduos acometidos por hemorragia subaracnóide de tipo moderado ou severo. Os eritrócitos estavam presentes nos canais delimitados por feixes de fibras elásticas, colágenas e células aracnóides. Os canais tortuosos e intercomunicantes eram observados desde o pediculo até a cápsula fibrosa da granulaçäo aracnóide. O principal trajeto dos eritrócitos e do líquido cáfalo-raquidiano ocorria no interior do pedículo e centro da granulaçäo aracnóide. Na hemorragia severa, os compoentes fibro-musculares estavam desorganizados e os canais extra-celulares aumentados. A presença de células com grandes núcleos, observada no material hemorrágico, é sugestiva de transformaçöes das células aracnóides em células fagocitárias, para promover a digestäo intracelular dos eritrócitos


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Arachnoid/pathology , Subarachnoid Hemorrhage/complications , Granulation Tissue/pathology , Subarachnoid Hemorrhage/pathology
SELECTION OF CITATIONS
SEARCH DETAIL
...