Radiological Characteristics of Peritumoral Edema in Meningiomas.

Lee, Ki Yeul; Joo, Won Il; Rha, Hyung Kyun; Park, Hae Kwan; Lee, Kyung Jin; Choi, Chang Rak

Original Article

Journal of Korean Neurosurgical Society 2005;37(6): 427-431.

Ki Yeul Lee, Won Il Joo, Hyung Kyun Rha, Hae Kwan Park, Kyung Jin Lee, Chang Rak Choi

Department of Neurosurgery, The Catholic University of Korea, Catholic Neuroscience Center, Seoul, Korea. jwi@catholic.ac.kr

ABSTRACT

OBJECTIVE
S: The purpose of this study is to evaluate the radiological charactersitics related to the formation of peritumoral edema in meningiomas. METHODS: Fifty patients with meningioma were examined by magnetic resonance images and cerebral angiography. The predictive factors associated peritumoral edema, such as, tumor size, peritumoral rim (cerebrospinal fluid cleft), shape of tumor margin, signal intensity of tumor in T2WI, and pial blood supply were evaluated. RESULTS: Tumor size, peritumoral rim and pial blood supply correlated with peritumoral edema on univariate analyses. But in multivariate analyses, pial blood supply was statistically significant as a factor for peritumoral edema in meningioma. CONCLUSION: In our results, pial blood supply is significant contributing factor for peritumoral edema in meningioma.

Key Words: Meningioma; Peritumoral edema; Magnetic resonance image; Pial blood supply