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J Neuroimaging. 2006 Jan;16(1):52-8.

Neuroimaging in pineal tumors.

Author information

1
Department of Radiology, State University of Campinas - UNICAMP, Campinas, SP, Brazil.

Abstract

BACKGROUND AND PURPOSE:

The authors report radiological findings in 11 tumors in the pineal region, which were histologically diagnosed as germinomas, pineocytomas pineoblastomas, ependymomas, teratomas, and astrocytomas.

METHODS:

Computed tomography (CT) was performed in seven patients and magnetic resonance imaging (MRI) was performed in all patients.

RESULTS:

CT showed a solid or solid/cystic mass with variable contrast enhancement. MRI showed a heterogeneous mass, with hypointense signal on T1 and iso/hyperintense signal on T2-weighted images (WI) and gadolinium enhancement. Extension to adjacent structures occurred in five patients and spread through the cerebral spinal fluid (CSF) in two.

CONCLUSIONS:

Pineal region tumors have no pathognomonic imaging pattern. MRI and CT are complementary in diagnosis and are important to determine localization, extension, and meningeal spread.

PMID:
16483277
DOI:
10.1177/1051228405001514
[Indexed for MEDLINE]

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