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Biomedical subjects

J Vignaud

Publications and source records attributed to J Vignaud.

At least 37 records · Page 2Linked to original sources
PubMed1982

[A giant-cell tumor of the mandibular condyle].

The authors present a case of a giant cell tumor of the mandibular condyle, which is a very rare condition. Clinical history and symptoms suggested a disease of the ear. There was a destruction of the cortex of the condyle an invasion of the joint cavity, and an erosion of the adjacent temporal bone.

Adult↗
PubMed1982

Anomaly of the facial canal in a Mondini malformation with recurrent meningitis.

A patient with recurrent meningitis and congenital hearing loss was evaluated with tomography and metrizamide cisternography. Tomography showed an aberrant first portion of the facial nerve canal, while on cisternography, communication between the internal auditory canal and the dilated labyrinthine remnant was evident. The authors describe the radiographic findings and their significance and propose a mechanism for the formation of the anomalous facial nerve canal.

Child↗
PubMed1981

[Therapeutic radiology of E.N.T. tumors of base of skull : middle and posterior sections excluding neuroma of N. VIII. (author's transl)].

The aim and materials of therapeutic angiography regarding the tumours of the base of the skull in the ENT field are discussed. Indications of embolization are clear, they involve the hypervascular tumors whose blood supply is depending on the external carotid artery, and which may be operated upon. In such cases, embolization is performed about 48 hours before surgery. A special emphasis is done concerning the risks and their prevention, which is linked on a better knowledge of the micro vascular radio anatomy.

Carotid Artery, External↗
PubMed1981

[Echotomography of the carotid bifurcation (author's transl)].

Echotomography examinations of carotid bifurcation were conducted in 19 patients, with a real-time apparatus (71 crystals, 7 MHz). Serial transversal sections plus two or more longitudinal sections enabled identification by Echo-B of the three carotid arteries, and thus the bifurcation, in 37 instances. Arteriography was performed in 11 patients (21 carotid arteries). Correlation between Echo-B and arteriographic findings was good in 10 cases (including 1 case of occlusion and 2 of stenosis). There were 3 false negatives but no false positives. Echo-B did not detect the bifurcation on either side in one patient. The method is non-invasive, painless, and can be repeated without risk. It enables the detection of stenotic and occlusive lesions with a certain degree of reliability. It is also of value for demonstrating the presence of atheromatous plaques, and to some extent, irregularities in the arterial wall or variations of its diameter. It allows new perspectives for long-term following of patients after medical or surgical treatment.

Aged↗
PubMed1980

[Computed tomography in multiple sclerosis].

Sixty patients with multiple sclerosis were examined by computed tomography using an Acute 200 Pfizer apparatus (matrix: 256 X 256; sections: 8 mm thick). In 48 cases iodine contrast medium was injected prior to examination, and in 6 cases the examination was repeated after several months. Abnormal C.T. readings were found in three quarters of the patients; increased image density in 10 patients, reduced density in 10 other cases; isolated cerebral atrophy in 26 patients, associated in 10 other cases with increased or reduced density of the image. Increased densities were seen mainly during acute episodes, then tended to isodensities or low densities. Though these different images are not specific, their association, the absence of mass effect and the absence of correlation between their location and the clinical signs, are elements in favor of the diagnosis of multiple sclerosis. Regions of increased density probably represent active foci of demyelinization and their investigation could be of value during long-term follow-up of these patients.

Adult↗
PubMed1980

[Scannography apport in syringomyelic study. 40 syringolyelic cases (author's transl)].

Forty patients with a syringomyelic syndrome were studied by means of scannography of the cervical spine and cervico-occipital joint before and after intrathecal injection of metrizamide. metrizamide transit, and more particularly the opacification of the syringomyelic cyst by metrizamide were assessed by delayed passages. This study demonstrates the value of this technique both from the morphological and dynamic point of view.

Adult↗