MRI findings of lesions in the cerebellopontine angle

Objective To investigate the MRI features of lesions in the cerebellopontine angle.Methods 83patients with lesions in the CPA were confirmed by pathology,the MR imaging features of them were analysed.Results In 83cases,50cases were acoustic neuroma,13cases were meningioma,13cases were epidermoid cyst,4cases were trigeminal neuroma,1case was arachnoid cyst,1case was strocytoma,and 1case was ependymoma.38lesions were located in the left CPA,45lesions were located in the right CPA.Compared with pathological results,the accuracy rates of location and qualitative diagnosis were 98.8% and 95.2%.Conclusion MRI can be used as the first choice for detecting the CPA tumors,and it has a high value in the diagonosis and differential diagnosis of CPA tumors.