MAGNETIC RESONANCE IMAGING (MRI) AND MAGNETIC RESONANCE SPECTROSCOPY (MRS) OF INTRACRANIAL LIPOMAS

R. Fründ, A. Geissler, M. Gliese, J. Seitz, S. Feuerbach

Rüdiger Fründ Institut für Röntgendiagnostik Klinikum der Universität Regensburg, D-93042 Regensburg Germany

Received 6/3/97 Accepted 9/16/97

1. ABSTRACT

We show a detailed magnetic resonance (MR) examination of two rare pericallosa lipomas with a fat suppression imaging sequence and proton MR spectroscopy. For comparison, subcutaneous fat and lipids in glioblastomas were examined with ¹H MR spectroscopy in vivo and ex vivo. Fat suppression makes the identification of lipomas simple. It is suggested that ¹H MR spectroscopy shows no differences in the aliphatic chain length of lipoma and subcutanous fat, whereas lipids in glioblastomas have a much shorter chain length. Chain length of fatty acids in lipoma measured with in vivo MR spectroscopy are in concordance with data from the literature.