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
    ISSN: 1432-0533
    Keywords: Menkes disease ; Copper deficiency ; Arterial elastic membranes ; Necroses ; Demyelination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two cases of Menkes disease belonging to different families are reported in order to illustrate different types of central nervous system involvement. In the first case which documents the sex-linked recessive inheritance, arteriographic studies have shown that the vascularization of the brain was severely impaired. Postmortem examination revealed lesions of the elastic membranes of large and medium calibre arteries, widespread and extremely severe necroses of grey and white matter with relative sparing of the territories irrigated by the vertebro-basilar system. The dendritic tree of the Purkinje cells was atrophied, somal sprouts were not found. Electron microscopy showed the mitochondria to be morphologically normal. In the second case, there was a bilateral demyelination predominating in the temporal lobes' white matter while arterial alterations and anoxic lesions were present but less prominent. The Purkinje cells were normal. Considering the role of copper as a co-factor for different enzymes, it is possible to explain many features of Menkes disease on the basis of a lack of copper (Danks et al., 1972a, b). Multiple elements play a role in the pathogenesis of the C.N.S. lesions: some alterations, such as the parenchymatous necroses, depend from circulatory disturbances related to arterial abnormalities; others, such as the demyelination, the dystrophic features etc., could be linked to various enzymatic deficiencies susceptible to interfere with postnatal myelination and differentiation of cell membranes as illustrated by the study of spontaneous and experimental animal diseases.
    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
    European archives of oto-rhino-laryngology and head & neck 213 (1976), S. 412-414 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary There is no big difference between reocurrence of cholesteatoma in open or closed cavities. Following the way of smallest resistence the recurrent cholesteatoma causes a destruction of the thinned posterior bony canal wall or it perforates the soft tissue cover retroauricularly. Residual cholesteatoma mostly occur in the tympanic cavity behind an intact tympanic membrane. Formation of a small white pearl is seen very often. Serious complications as brain abscess etc. did not occur so far. For controlinspection or revision a second stage surgery after several months or about a year is to advice. For the socalled “second look” the antrotympanoscopy was introduced. Using a trocar a small guide tube is brought through the concha into the closed cavity. In the same way a small ear speculum can be installed. The Ward-Bercy pharyngoscope with its optical system as well as the Zeiss microscope can be used for inspecting the closed cavity. Biopsy can be taken using a small forceps. Small suction tubes are available.
    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...