Acta Medica Medianae
Vol. 50, No 2, June, 2011
UDK 61
ISSN 0365-4478(Printed version)
ISSN 1821-2794(Online)
 

Correspondence to:

Jelena Stefanović

Faculty of Medicine Niš

Bulevar dr Zorana Đinđića 81 18000 Niš, Serbia

E-mail: jstefa9@yahoo.com

Original article                                             

UDC: 616-073.7:616.831-006

doi:10.5633/amm.2011.0204

MAGNETIC RESONANCE PRESENTATION OF INTRACRANIAL MENINGIOMAS

Jelena Stefanović¹, Dragan Stojanov², Petar Bošnjaković², Slađana Petrović², Daniela Benedeto-Stojanov³ and  Nebojša Ignjatović⁴

Faculty of Medicine, University of Niš, Serbia¹

Institut of Radiology, Clinical Center Niš, Serbia²

Clinic of Gastroenterology, Clinical Center Niš, Serbia³

Clinic of General Surgery, Clinical Center Niš, Serbia⁴

Magnetic resonance (MR) has become the most important imaging method in the diagnosis of intracranial meningeomas.

The aim of this study was to present the characteristics of meningiomas.

Thirty patients with histologically proven intracranial meningiomas were studied. There were 20 female and 10 male patients (median=53±15 years). All MR examinations were performed on the MR apparatus, the strength of which is 1.5T. All patients were scanned with T1, T2-weighted imaging (T1WI, T2WI), FLAIR and contrast-enhanced T1WI.

Most of the tumors showed on T1WI the isointense signal (80%) and hypointense signals (20%). On T2WI, most of tumors showed isointense signal (80%) and hyperintense signal (20%). On FLAIR, the majority of tumors showed isointense signal (80%) and hyperintense signal (20%). After contrast administration, significantly intensive sign in contrast-enhanced T1WI was observed in 90% of the tumors, while 10% showed moderate enhancement. Supratentorial lesions were found in 83,34% of cases and infratentorial lesion were demonstrated in 16,66% of cases.

MRI characteristics of intracranial meningiomas are various. Intracranial meningiomas usually show isointense and hypointense signals on T1WI; isointense and hyperintense ones on T2WI; isointense and hyperintense ones on FLAIR images, with intense enhancement after contrast administration. The most common is supratentorial localisation. Acta Medica Medianae 2011;50(2):24-28.

Key words: MR, meningioma