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Biomedical subjects

W Luyendijk

Publications and source records attributed to W Luyendijk.

At least 37 records · Page 2Linked to original sources
PubMed1986

The future role of neurosurgery in medicine.

Illustrated by several examples from the past it is demonstrated how difficult it is to predict future developments in neurosurgery. Several determinants can be recognized as exerting a positive or a negative influence in this respect. Careful observation of unexpected events and consequent consideration in combination with a spiritual independency, are aspects which will contribute in a positive way. The reverse will unavoidably lead to abolition of new ideas and concepts. Authority in a personal as well as in an impersonal way, may act as a negative determinant. This aspect is illustrated by some examples regarding the phenomenon of the "medical mandarin" as a personal authority, and the irrational adherence to paradigms as an impersonal one. Based upon recent experiments new ways for neurosurgical activities are indicated, concerning 1st transplantation of fetal central nervous tissue and of adrenal medullary tissue, and 2nd deep long-term stimulation of the beta endorphin-serotonin system for the control of chronic pain.

Adrenal Medulla↗
PubMed1985

Metastasis of an occult gastric carcinoma suggesting growth of a prolactinoma during bromocriptine therapy: a case report with a review of the literature.

The treatment of a slowly growing invasive prolactinoma with bromocriptine for 8 months resulted in a substantial decrease in plasma prolactin levels despite rapid suprasellar tumor expansion. On exploration, this uncommon observation could be attributed to hematogenous metastasis from an occult gastric adenocarcinoma to the pituitary tumor. Apart from infiltration of neighboring parts of the hypothalamus, autopsy revealed no other hematogenous metastases. This extraordinary type of neoplasm-to-neoplasm metastasis was not shown by computed tomography. This possibility should be considered whenever progressive growth of a pituitary mass is accompanied by a decrease in hormonal overproduction.

Adenocarcinoma, Mucinous↗
PubMed1981

Neurofibrosarcoma of the cauda equina. Case report.

A case of a malignant neurofibroma of the cauda equina is described. Its location seems to be rare. An extensive surgical resection including the adjacent neural tissue and the enveloping dural sac was carried out, followed by radiotherapy.

Adult↗
PubMed1979

Sarcoidosis presenting with diabetes insipidus followed by acute cranial nerve syndrome. A case report.

Diabetes insipidus in a previously healthy 16-year-old girl led to surgical exploration of a pituitary stalk intumescence detected by oxygen cisternography with the use of tomography. Biopsy of the pituitary stalk contained chronically inflamed brain tissue. Subsequent liver and bone biopsies showed characteristic granulomata, confirming the diagnosis of sarcoidosis. Subfrontal craniotomy was followed by a rapidly progressive basal meningoencephalitis with multiple cranial nerve involvement. The need to establish a causal diagnosis in diabetes insipidus is stressed. The rarity of the disorder and the presumed role of subfrontal craniotomy with regard to the flare-up of the sarcoidosis of the brain are discussed.

Adolescent↗
PubMed1978

Basilar impression in an achondroplastic dwarf: causative role in tetraparesis.

The neurological and radiological findings in a case of chondrodystrophic dwarfism are described. The progressive tetraparesis proved to be based on a high-level medullary compression resulting from basilar impression and upper cervical stenosis. Surgical decompression led to the disappearance of the tetraparetic phenomena. Various aspects of chondrodystrophic dwarfism and basilar impression are discussed in relation to the neurological symptomatology, and the question of whether, in general, more attention should be given to the cranio-cervical region, is raised.

Achondroplasia↗
PubMed1977

Henk Verbiest.

Explore the source record for details and available documents.

History, 20th Century↗
PubMed1976

The plica mediana dorsalis of the dura mater and its relation to lumbar peridurography (canalography).

Lewit and Sereghy (1975) have expressed some doubts about the existence of the dorsal plica mediana and its relation to the median translucency regularly seen on peridurographic pictures made in the PA projection. The present paper reports the demonstration of the dorsal plica mediana in fresh anatomical preparations under conditions lowering the intradural pressure, and the relation of the plica to the peridurographical median translucency, shown on the basis of the injection into the lumbar peridural space of a gelatine solution containing India ink.

Child, Preschool↗