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Article

MRI Imaging Characteristics of Glioblastoma with Concurrent Gain of Chromosomes 19 and 20

1
Department of Radiology and Imaging Sciences, Emory University School of Medicine, Emory University Hospital, Suite D112, 1364 Clifton Road NE, Atlanta, GA 30322, USA
2
Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Emory University Hospital, Room H184, 1364 Clifton Road NE, Atlanta, GA 30322, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Brian D. Ross
Tomography 2021, 7(2), 228-237; https://doi.org/10.3390/tomography7020021
Received: 16 April 2021 / Revised: 17 May 2021 / Accepted: 27 May 2021 / Published: 2 June 2021
Glioblastoma (GBM) is the most common and deadly primary brain tumor in adults. Some of the genetic variations identified thus far, such as IDH mutation and MGMT promotor methylation, have implications for survival and response to therapy. A recent analysis of long-term GBM survivors showed that concurrent gain of chromosomes 19 and 20 (19/20 co-gain) is a positive prognostic factor that is independent of IDH mutation status. In this study, we retrospectively identified 18 patients with 19/20 co-gain and compared their imaging features to a control cohort without 19/20 co-gain. Imaging features such as tumor location, size, pial invasion, and ependymal extension were examined manually. When compared without further genetic subclassification, both groups showed similar imaging features except for rates of pial invasion. When each group was subclassified by MGMT promotor methylation status however, the two groups showed different imaging features in a number of additional ways including tumor location, size, and ependymal extension. Our results indicate that different permutations of various genetic mutations that coexist in GBM may interact in unpredictable ways to affect imaging appearance, and that imaging prognostication may be better approached in the context of the global genomic profile rather than individual genetic alterations. View Full-Text
Keywords: brain tumor; glioblastoma; imaging prognostication; radiomics; radiogenomics brain tumor; glioblastoma; imaging prognostication; radiomics; radiogenomics
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MDPI and ACS Style

Min, T.L.; Allen, J.W.; Velazquez Vega, J.E.; Neill, S.G.; Weinberg, B.D. MRI Imaging Characteristics of Glioblastoma with Concurrent Gain of Chromosomes 19 and 20. Tomography 2021, 7, 228-237. https://doi.org/10.3390/tomography7020021

AMA Style

Min TL, Allen JW, Velazquez Vega JE, Neill SG, Weinberg BD. MRI Imaging Characteristics of Glioblastoma with Concurrent Gain of Chromosomes 19 and 20. Tomography. 2021; 7(2):228-237. https://doi.org/10.3390/tomography7020021

Chicago/Turabian Style

Min, Taejin L.; Allen, Jason W.; Velazquez Vega, Jose E.; Neill, Stewart G.; Weinberg, Brent D. 2021. "MRI Imaging Characteristics of Glioblastoma with Concurrent Gain of Chromosomes 19 and 20" Tomography 7, no. 2: 228-237. https://doi.org/10.3390/tomography7020021

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