ISSN:
1432-1920
Schlagwort(e):
Key words Brain neoplasm
;
diagnosis
;
Magnetic resonance imaging
;
Medulloblastoma
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Notizen:
Abstract Medulloblastomas are generally associated with childhood, but 14–30 % occur in adults, accounting for 1 % of adult central nervous system tumors. While approximately one third of adult medulloblastomas present as vermian tumors similar to those seen in childhood, the majority differ substantially from the childhood variety. In this series of 13 patients, 5 had lateral, seemingly extra-axial masses in the cerebellopontine angle or at the tentorium, simulating meningiomas or acoustic neuromas, but angiographic hypovascularity in 2 of the latter suggested a diagnosis other than meningioma. Of 4 paramedian tumors, 3 diffusely infiltrated the cerebellar white matter, showed little or no gadolinium enhancement and were not associated with hydrocephalus. Hydrocephalus was present in less than half of our patients; in childhood the reported incidence is 85–100 %. A possible association with pregnancy was noted.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00588622
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