Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Neurosurgical review 2 (1979), S. 79-86 
    ISSN: 1437-2320
    Keywords: Subependymoma ; Intraventricular tumours ; Cervical intramedullary tumour ; Light and electron microscopic investigations ; Subependymal cell plate ; Astrocytoma ; subependymal glomerate astrocytoma ; Subependymom ; intraventrikuläre Tumoren ; intramedulläre Tumoren des Halsmarks ; licht- und elektronenoptische Untersuchungen ; subependymäre Zellplatte ; Astrocytom
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es werden 3 Fälle von Subependymom beschrieben, in 2 von diesen hat der Tumor eine klinische Symptomatologie hervorgerufen, der 3. war ein Zufallsbefund bei der Autopsie. Die Tumoren lagen im rechten Seitenventrikel, im 4. Ventrikel und im Halsmark. Im letzterwähnten Falle wurde eine Operation durchgeführt und dies ist der erste erfolgreich operierte Fall eines Subependymoms des Rückenmarks, der in der Literatur beschrieben wird. Bei dem Tumor im Ventrikel und bei dem spinalen Tumor konnten elektronenmikroskopische Untersuchungen durchgeführt werden. Licht- und elek-tronenoptische Untersuchungen zeigten, daß die Tumorzellen einen fibrillären Charakter wie bei Astrozyten hatten, doch konnte aufgrund andersartiger morphologischer Strukturen der Tumor nicht absolut mit dem fibrillären Astrocytom gleichgesetzt werden. P. S. während der Drucklegung: Das Subependymom ist in der neuen Nomenklatur der Weltgesundheitsorganisation vorgesehen als „subependymäres glomeruläres Astrozytom“.
    Notes: Summary Three cases of subependymoma are described. In two of them, the tumour had produced clinical symptoms, in one it was found incidentally at autopsy. The tumours were located in the right lateral ventricle, in the fourth ventricle and in the cervical spinal cord. Operation was performed in the latter case, this being the first case of successfully operated subependymoma of spinal cord localization described in the literature. The lateral ventricular and the spinal tumours were subjected to electron microscopic study. Light and electron microscopic investigations showed that the tumour cells were of fibrillar astrocytic character, yet owing to other morphological features the tumours could not be absolutely identified with fibrillary astrocytomas. P.S. while in press: Subependymoma will be an entity of the forthcoming “Histological Classification of Tumours of the Central Nervous System” of the World Health Organization as “subependymal glomerate astrocytoma”.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 80 (1990), S. 328-333 
    ISSN: 1432-0533
    Keywords: Pituitary adenoma ; Neuronal and lipomatous hamartoma ; Immunocytochemistry ; Electron micrscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The histological, ultrastructural and immunocytochemical features are reported of an intrasellar neuronal and lipomatous hamartoma associated with pituitary growth hormone (GH) cell adenoma and acromegaly. Electron microscopy demonstrated a close contact between neurons and adenomatous GH cells. By immunohistochemistry the adenoma cells revealed a positive staining for GH and prolactin. the neurons of hamartoma showed neurosecretory activity which might have induced the development of pituitary GH cell adenoma.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-0533
    Keywords: Pituitary adenoma ; Gigantism ; Electron microscopy ; Immunocytochemistry ; Cell culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A pituitary adenoma was transsphenoidally removed from a 4.5-year-old girl suffering from gigantism. Prior to the operation both the growth hormone (GH) and the prolactin (PRL) levels in the serum were elevated. By light microscopy the tumor appeared to be an acidophilic adenoma. Two distinct cell types, the densely granulated and the sparsely granulated cells, could be distinguished by electron microscopy. Double immunolabeling revealed the presence of GH alone in some densely granulated cells and PRL alone in some sparsely granulated cells, as well as GH and PRL co-localized in both of the morphologically distinguished cell types. Both cell types were identified in the monolayer and the suspension cultures by electron microscopy. GH and PRL concentrations in the culture media were measured by radioimmunoassay. The basal secretion of growth hormone was almost uniform during the 3-week cell culture period. GH and PRL release was significantly inhibited by bromocriptine. Our studies revealed a bimorphous and bihormonal mixed adenoma in childhood.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...