Type:
Educational Exhibit
Keywords:
Multidisciplinary cancer care, Cancer, Perception image, Imaging sequences, PET-CT, MR, Neuroradiology brain
Authors:
J. E. Gutierrez Alliende1, A. Gallardo Alcañiz2, A. Fernandez Leon2, M. D. V. Camacho Marti2, A. Lozano2, J. E. Méndez Escalante2, C. J. De Quintana Schmidt 2, I. Carrio Gasset 2, B. Gomez-Anson2; 1Barcelona /ES, 2Barcelona/ES
DOI:
10.1594/ecr2018/C-2586
Findings and procedure details
42 patients (15 men and 27 women,
average age 58 years) having meningiomas that were surgically treated and clinically followed-up with MRI at our institution during the period 2009-2017 were included.
Of these,
6 patients having increased uptake on 18F-choline on PET (3 men,
3 women,
average age 60.6 years) and recurrent/progressive meningiomas were identified.
Of these 6 patients,
histology demonstrated: 2 meningotheliomatous meningiomas (WHO Grade I) and 4 atypical meningiomas (WHO Grade II) with a mean cellularity-index (KI-67) of 7.6% (range 3-15) ( Table 3 ).
MRI features studied were; signal and heterogeneity on T1,
post-contrast T1,
T2,
and SWI-images (gray matter compared).
We also studied the ADC-maps appearance.
Other evaluated features were tumor size,
borders,
location,
presence of edema and parenchymal invasion ( Table 4 and Table 5 ).
( Fig. 2 ) demonstrates these PET-CT and MRI features.