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Biomedical subjects

B Lechevalier

Publications and source records attributed to B Lechevalier.

At least 91 records · Page 5Linked to original sources
PubMed1982

[Cervical neurenteric cyst with paroxysmal symptoms].

Description of a cervical intradural extramedullary neurenteric cyst in a fifty eight years old female. After a sudden onset of right brachial paresis, spinal hemiplegia during the following few days. The tumor was situated at C6 and C7 in front of the spinal cord. It could be completely removed by means of laminectomy.

Female↗
PubMed1980

[Cerebellar atrophy associated with lesions of the pallidum and luys' body and presence of lewy bodies. Relationships with degenerative disorders of the pallidum, substantia nigra and luys' body (author's transl)].

Clinical and pathological findings in a case of hereditary degenerative disease of the nervous system are reported. The clinical picture associated cerebellar signs with an action hypertonia, which was the cause of severe hypertonic paroxysms in the terminal stages of the illness. Pathological lesions were found in the cerebellar cortex, the external part of the pallidum, Luys' body, and the substantia nigra which included Lewy bodies. The relationships of this case with atrophic lesions of the pallidum and Luys' body are discussed.

Aged↗
PubMed1979

[Associated vertebral angioma and epidural cavernoma (author's transl)].

A 27 year old man developed a pyramidal syndrome with hypoesthesia up to the level of D8, over a period of two months. Radiographic examination revealed the presence of an angioma of D8. Selective angiography demonstrated that there was epidural invasion as well as an angioma of the vertebral body, and enabled embolization of the 2 pedicles of the lesion to be performed. This produced only a partial, temporary improvement, and a posterior epidural tumor was found and removed by operation. The histological appearance of the tumor was that of a cavernoma, and rapid and permanent recovery of normal neurological function was obtained after the operation. The authors discuss the pathogenicity of the neurological disorders associated with single bone angiomas, and the problems raised by their treatment.

Adult↗
PubMed1978

[The intracerebral distribution of bismuth in bismuth encephalopathy. Pathological and toxicological study of 3 cases (author's transl)].

Neuropathological study of 3 patients dying from bismuth encephalopathy showed the absence of specific lesions and the probably secondary nature of the abnormalities found. Multiple samples taken from various areas of the brain were used for the purpose of the analysis of the topographical distribution of bismuth. Levels were invariably very high and to toxic agent diffusely distributed. The concentration was nevertheless higher in the grey matter than in the white matter. They hypothesis of a liposoluble compound which would explain the affinity of bismuth for cerebral tissue is probable.

Aged↗
PubMed1977

Hemispheric disconnection syndrome with a "crossed avoiding" reaction in a case of Marchiafava-Bignami disease.

A clinicopathological study is presented of a case of Marchiafava-Bignami disease with a hemispheric disconnection syndrome, an association that does not appear to have been reported previously. Gross and microscopic examination of the brain revealed necrosis of the corpus callosum (sparing a small area in front of the splenium) and of the anterior commissure, cortical and subcortical infarction of the right lingual gyrus, diffuse cortical lesions of the laminar sclerosis type, and lacunae in the basal ganglia and the pons. The patient was unable to grasp objects presented to the right visual half-field with the left hand, or to respond to contralateral somaesthetic stimuli with either of the upper limbs. This motor inhibition, with the associated extended posture, is described as a "crossed avoiding reaction", and attributed to the inability of one hemisphere to respond to visual or somaesthetic stimuli projected to the other hemisphere. Clinicopathological correlations and visuomotor coordination mechanisms are discussed in the light of previous clinical and experimental studies. Anomia to pictures projected tachistoscopically to the left visual field, disturbances in the transfer of somaesthetic information, left sided ideomotor apraxia with agraphia, right sided dyscopia, and ideational apraxia especially marked in the right visual field were observed.

Apraxias↗
PubMed1976

[Granular cell pituicytoma (choristoma) of the pituitary stalk].

A case of granular cell tumour in the pituitary stalk is described marked by the sudden loss of visual acuity in the left eye, followed by the right years later. A comparison with 17 cases previously published and with cases of asymptomatic granular cell nodules leads the authors to suggest the term granular cell pituicytoma. They discuss the place of this neoformation among other systemic granular cell tumours (granular cell myoblastoma). Fifteen patients were operated on, complete excision being carried out in only three (including the case published). Whether complementary cobalt therapy is useful remains problematical since very few cases have been published because of the slow development of the neoplasm.

Choristoma↗