MRI of intracranial germ cell tumours

We reviewed MRI findings in proven intracranial germ cell tumours in 22 cases, 12 of whom received Gd-DTPA. On T1-weighted images, the signal intensity of the tumour parenchyma was moderately low in 19 cases and isointense in 3; on T2-weighted images, it was high in all cases. Regions of different i...

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Bibliographic Details
Published inNeuroradiology Vol. 37; no. 1; p. 32
Main Authors Sumida, M, Uozumi, T, Kiya, K, Mukada, K, Arita, K, Kurisu, K, Sugiyama, K, Onda, J, Satoh, H, Ikawa, F
Format Journal Article
LanguageEnglish
Published Germany 01.01.1995
Subjects
Adolescent
Adult
Brain - pathology
Brain Neoplasms - diagnosis
Brain Neoplasms - pathology
Child
Child, Preschool
Contrast Media
Diagnosis, Differential
Female
Gadolinium DTPA
Germinoma - diagnosis
Germinoma - pathology
Humans
Infant
Magnetic Resonance Imaging
Male
Organometallic Compounds
Pentetic Acid - analogs & derivatives
Pineal Gland - pathology
Pinealoma - diagnosis
Pinealoma - pathology
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Summary:We reviewed MRI findings in proven intracranial germ cell tumours in 22 cases, 12 of whom received Gd-DTPA. On T1-weighted images, the signal intensity of the tumour parenchyma was moderately low in 19 cases and isointense in 3; on T2-weighted images, it was high in all cases. Regions of different intensity thought to be cysts were found in 17 (77%): 7 of 12 patients with germinoma (58%) and in all other cases. Of the 13 patients with pineal lesions T1-weighted sagittal images showed the aqueduct to be obstructed in 5, stenotic in 7 and normal in 1. Strong contrast enhancement was observed in all 12 cases. Of the 14 patients with suprasellar lesions, 5 were found to have an intrasellar extension, and in 3 of these, the normal pituitary gland, which could be distinguished from the tumour, was displaced anteriorly. Ten patients (45%) had multiple lesions.
ISSN:0028-3940
DOI:10.1007/BF00588516