Biomedical subjects
Publications and source records attributed to G Bedou.
We report a case of intracranial primitive epidermoid carcinoma localized in the right temporal fossa in a 40-year-old man. The patient was submitted to surgical removal of his tumor and radiotherapy. Unfortunately, the survival time was six weeks after the operation. Clinical, radiological, anatomopathological features and the interest of the radiotherapy are discussed.
The authors report three cases of cervical degenerative cysts causing medullary or radiculomedullary compression. Anatomicopathological examination confirmed the fibrous nature of the cyst wall and the absence of a synovial layer. One of the cysts was embedded in the ligamentum flavum, whereas the other two were most lateral and adherent to the facet joint. The physiopathogenesis of these cysts is discussed.
The authors report the case of a 28-year-old woman who presented with L5 bilateral sciatica associated with perineal sensory disorders. During surgery, a mature pluritissular dysembryoma originating in a tethered spinal cord was discovered at the level of the L2-L3 intervertebral space. Following removal of the lesion, all symptoms disappeared. Mature pluritissular dysembryomas of the spinal cord result from the inclusion of neuroectodermal and mesodermal tissue which has not followed normal evolutive embryonic organization.
The authors report 102 cases of severe lesions of the lower cervical spine, in which operation was mandatory. The characteristics of these fractures are discussed, together with the different operative procedures. Posterior osteosynthesis using Roy-Camille's plates was preferred.
The authors report 121 cases of surgically treated severe lesions of the dorsolumbar spine. One single technique has been used: posterior osteosynthesis using Roy-Camille's plates.
The authors report one case of cervical Pott's disease located in C5 and associated with neurological disorders. Following corrections of the spinal disaxation, they advocate a per priman posterior fixation which will ensure spinal stability. This will be followed secondarily by an operation through an anterior approach.
Following surgical treatment of 2 cases of odontoïd base fracture, the authors describe the direct screw fixation technique through an anterolateral approach. This technique allows for good access and is very efficient. It results in an anatomical union with conservation of the craniospinal hinge mobility.
The authors report a case of traumatic bitemporal hemianopsia, without any macroscopic lesion in the chiasma. At this juncture, they argue about the different mechanisms which may occur in the pathogenesis of these lesions, and they dwell on the indirect mechanism of the quartering of the optic nerves, which is responsible for a tear in the chiasma.
Two new cases of large aneurysms of the infraclinoidal intracranial portion of the internal carotid artery are reported. After a survey of the literature, the authors emphasize the rarity of these malformations, their particular clinical picture with involvement of the cranial nerves. Among the various surgical techniques which were suggested for the management of these large aneurysms, the ligation of the internal carotid artery in the neck is favoured by the authors as the best procedure.
The authors report 2 cases of brain localisation of cysticercosis due to Cysticercus cellulosae. In both cases epilepsy was found but only later was its origin proved by the finding of characteristic ellipsoidal calcifications of cysticerci on the roentgenogram. The authors also recall the various possible symptoms ; insist on the fact that early positive diagnosis is difficult and that the mode of treatment by surgery is exceptional. Though cysticercosis is rare in France, it should be remembered when a diagnosis of epilepsy is made and no apparent cause is found : further research of etiology should thus be made in such cases.
Explore the source record for details and available documents.
The authors relate their experience of selective ventriculography. The methode previously described by CORRALES needs a small gold chain with fine links which can reach by gravity the cavity of the fourth ventricle through the third ventricle and the aqueduct of Sylvius. This small chain is used as a leader for a flexible catheter which permits selective clouding of median ventricular cavities. This technique was used in 18 patients. In one case only, the small chain went down without any difficulty into the cisterna magna. The ventricular system was normal. In the 17 other cases, the progression of the small chain was stopped at some point of the ventricular cavities. In each of those cases, the stopping of the small chain appeared to be linked with the presence of a growth directly obstructing or compressing the ventricular cavities and gave a first clue as to its location. Introduction of the catheter into the aqueduct of Sylvius was the only true difficulty; in 3 cases, anatomical (large massa intermedia) or pathological obstacle (right angle bending of the aqueduct of Sylvius) made it impossible. In those 3 cases a satisfactory selective clouding of the fourth ventricle was nevertheless obtained by injecting the dimer either into the posterior part of the 3rd ventricle or into the upper part of the aqueduct of Sylvius. In all cases the trouble some superpositions due to clouding of lateral ventricles were thus avoided and a tomographic investigation, specially useful for the diagnosis of expanding lesions of the third ventricle and posterior fossa was allowed.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Thr authors report observations relative to four cases of traumatic carotid-cavernous fistulas for which angiographic pictures were similar. Autopsy examination permitted in two cases to establish that the tentorial branch of the meningo-hypophyseal trunk was involved in the genesis of both fistulas. One case was from a rupture, the other from tearing of that branch. Further examination of these two cases showed an absence of sphenoid bone fracture which suggested that any arterial perforation or shearing process could be excluded. Thus the pathogenic hypothesis of PARKINSON is further sustained. The authors suggest that the observed arterial lesions may be due to tensions occuring at the proximal part of branches of the meningo-hypophyseal trunk. Such tensions may be carried out through tractions on the posterior meningeal walls of the cavernous sinus when trauma occur on the posterior temporal area and the petrous bone. Such traction forces were shown to be real in one case where a fracture of the dorsum sellae and a bilateral caroti-cavernous fistula were caused by a bilateral temporo-petrous trauma.
Explore the source record for details and available documents.
The authors report 2 cases of brain localisation of cysticercosis due to Cysticercus cellulosae. In both cases epilepsy was found but only later was its origin proved by the finding of caracteristic ellipsoidal calcifications of cysticerci on the roentgenogram. The authors also recall the various possible symptoms; insist on the fact that early positive diagnosis is difficult and that the mode of treatment by surgery is exceptional. Though cysticercosis is rare in France, it should be remembered when a diagnosis of epilepsy is made and no apparent cause is found: further research of etiology should thus be made in such cases.