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
  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 8 (1967), S. 76-83 
    ISSN: 1432-0533
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The lack of evidence of neuroectodermal differentiation in medulloblastomas as well as comparative morphological investigations of these tumors and all other non-teratomatous embryonic tumors of children, suggest the mesenchymal nature of medulloblastoma. This hypothesis is confirmed by the occurrence of authochtone reticulin fibers, of pseudoxanthomatous cells, of haemangio- and reticulosarcomatous areas, of cross-striated muscle fibers as well as the results of in vitro cultivation. The so-called “circumscribed arachnoidal sarcoma of cerebellum” is regarded as a differentiated medulloblastoma. The matrix of these tumors is the mesenchyma of the meninx primitiva, that, according toWeed, in rhomboencephalon shows no further differentiation in pia mater and arachnoidea, but remains of embryonic type. Finally, the relations between medulloblastomas and other “local-specific mesenchymal tumors of CNS” (lipomas, haemangioblastomas, microgliomas, et.) are briefly discussed.
    Notes: Zusammenfassung Vergleichende morphologische Untersuchungen zwischen den Medulloblastomen und den embryonalen Geschwülsten des Kindesalters erlauben die Feststellung, daß es sich beim Medulloblastom nicht um einen neuroektodermalen, sondern um einen mesenchymalen Tumor handelt. Diese Hypothese wird u. a. durch folgende Tatsache unterstützt: 1. endgültge Beweise einer neuroektodermalen Differenzierung der neoplastischen “Medulloblasten” fehlen; 2. bei vielen solcher Geschwülste sind autochtone Retikulinfasern, Pseudoxanthomzellen, Hämangio- und Reticulosarkomanteile sowie quergestreifte Muskelfasern vorhanden; 3. die Ergebnisse der Gewebezüchtung sprechen nicht für die neuroektodermale Herkunft der Geschwulstzellen. Das sogenannte “umschriebene Arachnoidealsarkom des Kleinhirns” (Foerster u.Gagel) ist nichts anderes als ein differenziertes, reifes Medulloblastom. Die Matrix dieser Geschwülste ist das embryonale Mesenchym der Meninx primitiva, das, nachWeed, im Rhombencephalon embryonal bleibt, ohne sich zu Pia mater und Arachnoidea weiter zu differenzieren. Die Beziehungen zwischen dem Medulloblastom und den übrigen “ortspezifischen mesenchymalen Geschwülsten des ZNS” (Lipome, Hämangioblastome, Mikrogliome usw.) sowie die zu den Meningeomen werden schlie\lich kurz erörtert.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 12
    ISSN: 1432-0533
    Keywords: Infantile multiple system atrophy ; Ubiquitin ; Neuronal intraunclear hyaline inclusion disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This report presents a case of infantile multiple system atrophy with probably autosomal recessive inheritance. The female patient developed generalized muscular hypotonia, myoclonias and tonic-clonic seizures at the age of 8 months, followed by gradual development of choreoathetotic hyperkinesia and increasing psychomotor retardation. Metabolic disease was ruled out and the child died of aspiration pneumonia at the age of 5 years. General autopsy was unremarkable, but neuropathological examination showed degeneration of cerebellum, inferior olives, medial thalamus, Clarke's nucleus, anterior horn cells, corticospinal, spinocerebellar tracts, and posterior columns. Immunohistochemically many neurons contained intranuclear and intracytoplasmic ubiquitin-positive inclusions, which did not contain neurofilament or tau epitopes and ultrastructurally consisted of granulofilamentous material. We tentatively classify this case as a form of infantile multiple system atrophy linked to neuronal intranuclear hyaline inclusion disease.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 60 (1982), S. 1351-1355 
    ISSN: 1432-1440
    Keywords: Minicore disease ; Malignant hyperthermia ; Minicore Disease ; Maligne Hyperthermie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bericht über einen Fall von Minicore Disease, entdeckt bei einem 10jährigen Knaben. Nosologie und Pathogenese dieser “Myopathie” werden erörtert. Die nicht seltene Feststellung von “cores” bei Krankheitszuständen unterschiedlicher Genese sowie unter verschiedenen experimentellen Bedingungen schließt nicht aus, daß zumindest ein Teil dieser “Core-Diseases” (Central-, Mini-, Multicore D.) keine nosologischen Einheiten, sondern vielmehr Gewebssyndrome sein könnten. Auf die möglichen Beziehungen zwischen Core Diseases und maligner Hyperthermie wird hingewiesen.
    Notes: Summary A case of minicore diseases (MCD) detected in a 10-year-old boy was reported and the nosological entity of this “myopathy” discussed. Its pathogenesis was unknown. Similar findings have been reported in many different conditions of human and experimental pathology. This suggests the possibility that at least some “core diseases” (central-, mini-, multicore myopathies), might not be diseases but just tissue syndromes. The possible relationship between these myopathies and malignant hyperthermia is stressed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 16 (1967), S. 122-128 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The operation specimens of thirty one patients which had been initially classified on routine study as Glioblastomas were submitted to an extensive histological review because the patients' postoperative survival lay between fourteen months and eleven years. Only seven cases should really have been classified as Glioblastoma and only in two of them did the postoperative survival exceed two years. The other twentyfour cases were divided into one group of fourteen “malignant” or regressively altering gliomas (Astrocytoma or Oligodendroglioma) and another group of ten primary brain sarcomas. The suggestion is made that many of the so-called circumscribed Glioblastomas, especially the Glioblastomas recorded in the literature with a long survival time, are not Glioblastomas at all but belong to one of the two above mentioned groups.
    Abstract: Résumé Trente et une tumeurs cérébrales primitivement étiquettées glioblastomes ont été subdivisées en plusieurs groupes, car la survie post-opératoire varie de 14 mois à 11 ans. Sept cas étaient de véritables glioblastomes, seuls deux cas parmi eux avaient une survie de plus de 2 ans. Les 24 cas restants se composent de deux séries: une série de 14 cas de gliomes dégénérés ou «malignisants» (astrocytome ou oligodendrocytomes). et une série de 10 sarcomes primitifs du cerveau. Selon les auteurs, beaucoup des glioblastomes „circonscripts“ et des cas opérés avec une longue survie, trouvés dans la littérature, ne sont pas de vrais glioblastomes et doivent être classés dans une des deux autres groupes.
    Notes: Zusammenfassung 31 Hirngeschwülste, die bei der routinemäßigen Untersuchung des Operationsmaterials zunächst als Glioblastome aufgefaßt worden waren und deren postoperative Überlebenszeit zwischen 14 Monate und 11 Jahre lag, wurden einer ausgedehnten histologischen Überprüfung unterzogen. Nur 7 Fälle waren wirklich als Glioblastome zu klassifizieren und nur bei 2 von ihnen überschritt die postoperative Überlebenszeit 2 Jahre. Bei den übrigen 24 Fällen handelte es sich um eine Gruppe von 14 „malignen“ oder regressiv veränderten Gliomen (Astrozytome, Oligodendrogliome) und eine zweite Gruppe von 10 primären Hirnsarkomen. Es wird die Vermutung geäußert, daß viele der „umschriebenen“ Glioblastome resp. der Glioblastome mit langer Überlebenszeit der Literatur, keine Glioblastome sind, sondern zu den zwei letztgenannten Gruppen gehören.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 22 (1970), S. 59-65 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In a man with operated frontal lobe protoplasmic astrocytoma and dying two years later under the clinical picture of recurrence, an undifferentiated microcellular tumour, obviously of leptomeningeal origin, was found within the old operation hole. The surrounding brain tissue showed a distinct proliferation of neoplastic astrocytes which exactly corresponded to the former operated glioma. Transitional forms between the two neoplastic cell types could not be identified. The case is interpreted as a rare collision tumour and the analogies between this parvicellular sarcoma and so-called medulloblastoma are shortly discussed.
    Notes: Zusammenfassung Bei einem zwei Jahre vor dem Tode wegen, eines frontalen Astrozytoms operierten 38jährigen Mann, der jetzt unter dem klinischen Bild eines Rezidivs innerhalb zwei Wochen ad Exitum gekommen war, wurde im alten Operationsareal eine gut abgegrenzte, kleinzellige, mitosenreiche, undifferenzierte Geschwulst offenbar leptomeningealen Ursprungs gefunden. Im angrenzenden Hirngewebe lag eine Wucherung neoplastischer Astrozyten vor, die dem vor zwei Jahren entfernten Tumor weitgehend entsprachen. Übergangsformen zwischen den zwei Tumorzellformen waren nicht feststellbar. Der Fall wird als Koüisionstumor betrachtet, die Ähnlichkeit zwischen dem kleinzelligen Leptomeningealsarkom und dem sogenannten Medulloblastom kurz erörtert.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 141 (1999), S. 781-782 
    ISSN: 0942-0940
    Keywords: Keywords: Myxopapillary ependymoma; proliferation; recurrence; pulmonary metastasis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary  Myxopapillary ependymomas are benign tumours which occasionally metastasize along cerebrospinal fluid pathways. Extraneural metastases of spinal ependymomas, however, are very rare, even more so when situated in the pleura.  We report the case of a 67 year old woman presenting with shortness of breath after recurrent myxopapillary ependymomas of the cauda equina. Chest X-ray showed multiple pleural lesions diagnosed as metastases of a myxopapillary ependymoma. The MIB-1 proliferation index was 3.1% for the initial spinal tumour, 14.2% for the first and 11.2% for the second recurrence while 12.0% for the pleural metastasis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 17
    ISSN: 0942-0940
    Keywords: Malignant rhabdoid tumour ; atypical teratoid/rhabdoid tumour
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Three cases of primary rhabdoid tumour of the CNS (RT-CNS) are presented. In case 1 a hemispheric tumour developed in a 10.5 months old girl, who survived for 6 months after incomplete resection, radio- and polychemotherapy. Case 2 was a 4 years and 8 months old boy with a large IIIrd ventricle tumour, who died of leptomeningeal tumour dissemination 7 months after diagnosis despite radiotherapy. In case 3 a pineal mass occurring in a 14 month old female was radioresistant and totally exstirpated. The child died due to tumour recurrence two months later. Autopsy examination revealed widespread leptomeningeal dissemination. All three cases fulfilled light and electron microscopic criteria of RT-CNS including abundant eosinophilic cytoplasm, vesicular nuclei with large nucleoli and conspicuous anti-vimentin positive filaments. Extensive immunohistochemical studies showed expression of epithelial (EMA, KL1), macrophage (alpha-1 antichymotrypsin), neuro-ectodermal (GFAP, NSE, β-tubulin III) and myogenic markers (desmin, actin). Different stress proteins (alpha-B crystallin, HSP70) were also expressed. Tumour cells showed a proliferation (MIB1) index of 28.4% (case 1) and 33.4% (case 2). From our study it can be concluded that RT-CNS reveals significant immuno-morphological heterogeneity thus supporting the view that it is not a specific pathological entity but merely a phenotypic appearance of different neoplasms, some of which are linked to primitive neuro-ectodermal tumours.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 87 (1987), S. 63-69 
    ISSN: 0942-0940
    Keywords: Amputation neuroma ; neodym yag laser ; nerve transection ; neuroma formation ; neuroma prevention
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The influence of Laser radiation on neuroma formation was investigated in rat sciatic nerves. Peripheral nerve trunks were divided by focussed Neodym Yag Laser and compared with those transected by microscissors. The nerves were re-exposed at different time intervals up to 240 days after initial operation. True neuroma formation could not be observed after laser transection. Sharp division resulted in widespread amputation neuromas consisting of regenerating axons and connective tissue. Neodym Yag laser radiation by its scattering effect may cause deep coagulation necrosis and thrombosis of vasa nervorum thus sealing the dome of the divided nerve trunk. The formation of amputation neuromas may be suppressed by laser application.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 54 (1980), S. 25-31 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Giant cell tumours of the brain are commonly a) monstrocellular sarcomas, b) giant cell glioblastomas or gliosarcomas, or c) “giant cell gliomas”,i.e. gliomas characterized by many atypical, giant-sized cells with monstrous nuclei. This last group is commonly found in the temporal region and should not be mistaken for a) and b), because, in spite of their “malignant” appearance, these tumours can present benign biological behaviour. Three such cases are described. In two cases the patients received postoperatively neither radio- nor chemotherapy: seven and three years respectively after operation no signs of recurrences were present. A third patient died within two years after operation. However, his tumour had histological signs of malignancy. The importance of exact histological diagnosis is stressed. This prevents misinterpretations in estimating the efficacy of postoperative therapy.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 18 (1968), S. 15-27 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Twenty seven meningioma recurrences and 11 cases classified by routine investigations as meningosarcomas were re-examined histologically and clinically in relation to the question of sarcomatous degeneration. The employment of definite histological criteria allowes to diagnosticate only 5 cases as malignant meningiomas or as meningosarcomas. All these cases were primary meningosarcomas. In no instance sarcomatous degeneration of the recurrence was established. The histological diagnosis were largely supported by the results of the tissue cultures. However, clinical-histological correlations could not be established. Finally, the possibility was raised that among (malignant) angioblastic meningiomas also haemangiopericytomas are present.
    Abstract: Résumé 27 récidives de méningiomes et 11 cas classés par les investigations de routine comme étant des méningo-sarcomes ont été reexaminés sur le plan clinique et histologique dans le cadre du problème de la dégénérescence sarcomateuse. L'utilisation de critères histologiques définis a permis de mettre à part seulement 5 cas comme méningiomes malins ou comme méningosarcomes. Dans chacun de ces cas, il s'agissait d'une tumeur primaire, et on n'a pas constaté de dégénérescence sarcomateuse des récidives de meningiome. Les diagnostics histologiques furent confirmés pour une très large part par les cultures de tissus. Par contre, il n'a pas été possible d'établir de corrélations entre la clinique et les résultats histologiques. Enfin, on attire l'attention sur le fait que, parmi les meningiomes angioblastiques (malins), peuvent se trouver ègalement des hémangio-péricytomes.
    Notes: Zusammenfassung 27 Meningeomrezidive und 11 bei der Routineuntersuchung als Meningosarkome bezeichnete Fälle wurden in bezug auf die Frage der sarkomatösen Entartung histologisch und klinisch überprüft. Die Anwendung bestimmter histologischer Kriterien erlaubt, nur 5 Fälle als maligne Meningeome bzw. Meningosarkome auszusondern. Bei allen Fällen handelte es sich um Primärgeschwülste, eine sarkomatöse Entartung der Rezidive wurde nicht festgestellt. Die histologischen Diagnosen fanden eine weitgehende Unterstützung in den Ergebnissen der Gewebezüchtung. Klinisch-histologische Korrelationen ließen sich dagegen nicht feststellen. Es wird schließlich auf die Möglichkeit hingewiesen, daß unter den (malignen) angioblastischen Meningeomen auch Haemangiopericytome vertreten seien.
    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...