Neuroimaging in pineal tumors

The authors report radiological findings in 11 tumors in the pineal region, which were histologically diagnosed as germinomas, pineocytomas pineoblastomas, ependymomas, teratomas, and astrocytomas. Computed tomography (CT) was performed in seven patients and magnetic resonance imaging (MRI) was perf...

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Bibliographic Details
Published inJournal of neuroimaging Vol. 16; no. 1; p. 52
Main Authors Reis, F, Faria, A V, Zanardi, V A, Menezes, J R, Cendes, F, Queiroz, L S
Format Journal Article
LanguageEnglish
Published United States 01.01.2006
Subjects
Adolescent
Adult
Astrocytoma - diagnosis
Brain Neoplasms - diagnosis
Child
Diagnosis, Differential
Ependymoma - diagnosis
Female
Germinoma - diagnosis
Humans
Magnetic Resonance Imaging
Male
Neuroblastoma - diagnosis
Pineal Gland - pathology
Pinealoma - diagnosis
Prognosis
Teratoma - diagnosis
Tomography, X-Ray Computed
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Summary:The authors report radiological findings in 11 tumors in the pineal region, which were histologically diagnosed as germinomas, pineocytomas pineoblastomas, ependymomas, teratomas, and astrocytomas. Computed tomography (CT) was performed in seven patients and magnetic resonance imaging (MRI) was performed in all patients. 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. 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.
ISSN:1051-2284
1552-6569
DOI:10.1177/1051228405001514