MRI Evaluation of Extra Axial Cerebello Pontine Angle Tumours
Journal Title: International Journal of Contemporary Medicine surgery and Radiology - Year 2018, Vol 3, Issue 3
Abstract
Introduction: Usually, cerebellopontine angle (CPA) tumors are benign, classified into intra axial, extra axial, extradural and petrous axis tumors. Present study aimed to evaluate the incidence of extra axial cerebellopontine angle tumours and also to characterize extra axial cerebellopontine angle tumours. Material and Methods: All patients with clinical suspicion of CP angle tumours subjected3T MR imaging system. Special sequences such as DWI and MR spectroscopy was performed. Results: Extra axial CPA tumours accounts for 7-10% of brain tumours. Most common extra axial CPA tumour is schwannoma (60%), followed by meningioma (27%), epidermoid (7%), arachnoid cysts (7%). 51-60 years is the most common age group involved. Schwannomas is common extra axial CPA tumours which are enhancing round masses most commonly arise from the vestibular nerve near the porus acousticus and associated with enlargement of internal auditorycanal. Meningiomas are second most common extra axial CP angle tumours whichoval or hemispheric lesions with a broad attachment to tentorium or petrousdura matter. Epidermoid cysts and arachnoid cysts follows CSF signal intensity on all these quences, epidermoid shows diffusion restriction on DWI but arachnoid cysts not restricted on DWI and completely suppressed on FLAIR. Conclusion: MRI is the most sensitive noninvasive modality to characterize extra axial CPA tumours. MRI identifies the location and extension of the lesions based on their characteristic signal and enhancement pattern on contrast.
Authors and Affiliations
Maheswararao Y. V. N, Rama Krishna Rao Baru
Keywords
Related Articles
- EP ID EP424241
- DOI 10.21276/ijcmsr.2018.3.3.8
- Views 112
- Downloads 0
Usefulness Assessment of Preoperative MRI Fistulography in Perianal Fistulas Patients
Introduction: Perianal fistulas with a complex, branched and high course, especially in patients after previous surgeries or patients with Crohn disease. Aim: Application of MRI fistulography for evaluation of cases of p...
Radiological Diagnosis of Hepatic Steatosis in Patients with Colorectal Cancer
Introduction: Colorectal cancer is the most common type of cancer worldwide. Insulin resistance, metabolic syndrome, obesity, type 2 diabetes, and dyslipidemia are the risk factors associated with cancer as well as non-a...
Nasopharyngeal Angiofibroma: Case Report With Role of Radiodiagnostic Procedures
Introduction: Juvenile angiofibroma is a relatively rare lesion that most commonly affects the nasal and paranasal cavity of young individuals, with maximal prevalence in males and with well characterised clinico-radiolo...
Computed Tomographic Findings of chest in Cases of HIV and Correlation with CD4 Counts- A Three Year Study at a Tertiary Care Hospital
Introduction: According to global report, 36.7 million people worldwide are living with AIDS by end of 2016, with 2.1 million children <15 years of age. The primary cell involved in AIDS is CD4 T-lymphocyte; hence the es...
A Study of Sonographic Assessment of Gallbladder Dimensions in Normal Adults
Introduction: Diseases of the gallbladder (GB) do affect its size and wall thickness. GB diseases are common pathology frequently encountered in medical practice and presents as right upper quadrant pain. Ultrasonography...