[Veins of the sacral canal (preliminary anatomic study apropos of 7 cases)].
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Biomedical subjects
Publications and source records attributed to M Renard.
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This study deals with the visceral metastasis of glioblastomas, ependymomas, oligodendrogliomas and medulloblastomas. Taking a sery fo four cases in the medical literature out of one hundred and fifteen cases published since 1961 and selected according the WEISS criterias, allows to indicate the delay in apparition of these metastasis as well as their elective localisation depending on the anatomopathological type of the original cerebral tumor. It does not give any precise indication to why these visceral metastasis appear. It seems to be very likely that the apparition of these secondary tumors is due to the failure of the shole defence systems of the body, favoured by the relative long survical of these patients and the surgical opening of the brain envelops.
Transfemoral ascending lumbar catheterization of the epidural veins is a new radiological method in lumbar disk disease. The technique and interpretation of the venogram offer some problems: Origin of ascending lumbar vein and internal vertebral venous structures are variable. The authors use 11 corrosion preparations and 18 venograms for the study of the ascending lumbar vein and internal vertebral venous system.
Variation of the course of the internal thoracic artery is analysed on the basis of 90 roentgenographs and 52 corrosion preparations. Origin, length, topography and diameter of the lumen of the trunk of the artery are described.
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