Role of Magnetic Resonance Imaging in Evaluation of Cerebellopontine Angle Schwannomas
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Date
2020-01
Journal Title
Journal ISSN
Volume Title
Publisher
Ibn Sina Academy of Medieval Medicine & Sciences
Abstract
Objectives: The study was designed to evaluate the role ofMagnetic Resonance Imaging (MRI) to localize andcharacterize the MR imaging features of cerebellopontineangle (CPA) schwannomas and to compare withsurgical/histopathological findings.Methodology: Thirty eight patients of clinically suspected &MRI diagnosis cases of CPA Schwannoms were selected inthis cross sectional study in different places of Bangladesh{Mymensingh Medical College Hospital Mymensigh, Sher-EBangla Medical College Hospital, Barisal, Popular DiagnosticCentre Gazipur & Lab Aid diagnostic Centre Barisal. Surgery ofall MR diagnosed cases were done in Dhaka Medial CollegeHospital & National Institute of Neuroscience Hospital, Dhaka}during the period from April 2008 to August 2019. All patientsincluded in the study were subjected to detailed clinical historyand physical examination following which MRI was carried outon 1.5 Tesla & 0.3 Tesla MR machine and the standardprotocol consisted of T1WI, T2WI, DWI and FLAIR images inaxial, sagittal and coronal planes.Results: MRI was erroneous in giving provisional diagnosis ofschwannoma in two cases, which on subsequent surgery andhistopathology was found to be a meningiomas. The sensitivityof MRI for correctly diagnosing vestibular schwannoma was100 % and specificity was 92.86 % with a positive predictivevalue of 94.12 % and accuracy of 96.67 %. MRI is consideredas an excellent noninvasive investigation for CP angleschwannoma’s. It can identify the site and extension of thelesions as well as the characteristic signal.
Description
Keywords
Schwannoma, Vestibulocochlear Nerve, Magnetic Resonance Imaging.
Citation
Sarkar Sushanta Kumar, Mondal Smarajit Kumar, Sarker Amitabh, Roy Nikhileshwar, Mukherjee Sudipta Kumer, Das Sukriti. Role of Magnetic Resonance Imaging in Evaluation of Cerebellopontine Angle Schwannomas. International Journal of Medical Research Professionals. 2020 Jan; 6(1): 118-123