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Biomedical subjects

J Rivel

Publications and source records attributed to J Rivel.

At least 73 records · Page 4Linked to original sources
PubMed1985

[Peritoneal gliomatosis associated with a mature teratoma of the ovary].

Peritoneal or/and omental implants composed of mature glial tissue is a rare complication of ovarian teratomas. A few cases have been previously reported, and one more case is described. The glial nature of the implants is proved by the presence of glial fibrillary acidic protein. The previous reports of long survival indicate that occurrence of this peritoneal gliomatosis does not alter the prognosis and that therapy directed at the peritoneal implants of mature glia is not required for cure.

Child↗
PubMed1984

[Partial epilepsies of adolescence with computer tomography abnormalities, localized astrocytic reaction and spontaneously remitting course].

Four teenagers with partial epileptic seizures presented focal cortical enhanced CT scan images. Angiographies were normal. Stereotactic biopsies revealed astrocytic proliferation. CT scan abnormalities diminished or vanished in some months. On long-term follow-up seizures were either less frequent or disappeared. None of the possible aetiologic hypotheses (astrocytoma, encephalitis, sarcoidosis, multiple sclerosis, vascular malformation) was fully satisfying. Nevertheless, a regressive evolution observed in these four patients demonstrates that acquired epileptogenic lesions during adolescence are not always of poor prognosis.

Adolescent↗
PubMed1983

[Primary non-Hodgkin's malignant lymphomas of the brain. Anatomoclinical and immunopathological study of 21 cases].

Twenty one cases of primary malignant lymphoma of the brain are studied. These tumors very seldom extend from the brain (one case in 21). There were no nodular forms and tumors of high-grade malignancy predominated (Kiel's classification). Immunopathological studies performed in eighteen cases showed immunoglobulin secretions in seven. Unlike other locations of non-Hodgkin lymphoma, prognosis depends on therapy and not on histological type. The outcome was improved by radiotherapy, sometimes combined with chemotherapy. Mean survival time was one month for untreated patients or patients treated only by surgery, and 32 months for patients treated by brain irradiation and chemotherapy.

Adult↗
PubMed1982

[Familial malignant carotid body chemodectoma with lymph node metastases. Light and electron microscopy study (author's transl)].

A case of malignant carotid body chemodectoma with neighbouring lymph nodes metastases is reported. The case is noteworthy as it was accompanied by another jugulotympanic chemodectoma. There was also hereditary component as four of the patients forebears had been operated for cervical chemodectomas. An ultrastructural study showed the characteristic secretory granules. 32 other cases of tumors of carotid body and jugular glomus with metastases are reviewed.

Adolescent↗
PubMed1980

[Ultrastructural study in the diagnosis of various neurolipidoses].

We have studied the sphingolipidosis, principally, ceroid-lipofuscinosis and other complex lipid storage diseases. We examined biopsy tissue of fourteen patients with diseases of the various types given above. The biopsy tissue was usually skin, muscle or peripheral nerve, and occassionally brain or various visceral tissue.

Biopsy↗
PubMed1976

[Ultrastructural aspects of peripheral nerve lesions in one case of Farber's disease].

The patient is a girl who had amyotrophia, dyspnea and juxta-articular nodes. She died at the age of 14 months. Ultrastructural examination of a sural nerve biopsy revealed anormal inclusions in the cytoplasm of numerous myelinated fibres. They are round or oval, and empty, sometimes with a great diameter. Some histiocytes show also such bodies. These are different from those seen in the other neurolipidosis.

Female↗
PubMed1975

[Leukodystrophy with adrenal insufficiency (adreno-leukodystrophy). A study of 3 familial cases with the ultrastructure of one biopsied case].

Three male siblings in a gypsy family presented with congenital Addison's disease. The youngest showed neurological signs at the age of ten and deteriorated rapidly. The eldest had convulsive symptoms and the third an irregular E.E.G. Investigation of the youngest by means of cerebral biopsy revealed rarefaction of myelin with perivascular sudanophil deposits. An ultrastructural study showed frequent liposfuscin deposits in the astrocytes and oligodendrocytes. In the peripheral nerve there were signs of re-myelinization associated with hypertrophy of Schwann cells. These various aspects have led to these cases of demyelinization associated with adrenal deficiency being classified among the leukodystrophies while some authors have interpreted these lesions as characteristic of Schilder's disease. The fact that in thirty or so cases published, almost half of which are familial, only boys are affected supports the theory of an enzymopathy at the root of both leukodystrophy and adrenal atrophy.

Addison Disease↗