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Klin Padiatr. 2002 Jul-Aug;214(4):162-6.

[Neuroradiological differential diagnosis in medulloblastomas and ependymomas: results of the HIT'91-study].

[Article in German]

Author information

1
Abteilung für Neuroradiologie, Universität Würzburg, Germany. warmuth@neuroradiologie.uni-wuerzburg.de

Abstract

BACKGROUND:

Imaging criteria of medulloblastomas and ependymomas were defined retrospectively to allow a preoperative differential diagnosis of these malignant tumors of the posterior fossa.

PATIENTS AND METHODS:

CT and/or MR-studies of 103 patients with medulloblastomas and 19 ependymomas treated in the HIT'91-trial were centrally reviewed. Evaluation concerned the origin, CT-density or MR-signal intensity, enhancement, internal structural homogeneity and results of staging of the tumors.

RESULTS:

Medulloblastomas and Ependymomas showed different results concerning all imaging criteria.

CONCLUSION:

On the basis of differences in localisation, enhancement and tumor growth in most cases a preoperative differential diagnosis between medulloblastomas and ependymomas is possible. Increased density on CT allows the differentiation of the malignant tumors from pilocytic astrocytomas of the fourth ventricle.

PMID:
12165896
DOI:
10.1055/s-2002-33190
[Indexed for MEDLINE]
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