Diagnosis: Benign neoplasm of cranial nerves Benign neoplasm of cranial nervesClinical question: 54y/o with an acoustic neuromaSigns and Symptoms: hearing loss in right ear The CSF spaces are appropriate for the patient's stated age with no midline shift. There is a right cerebellopontine angle cistern mass present extending into the right internal auditory canal which measures 17 x 9 mm in axial dimensions. Normal vascular flow voids are present in the distal carotid and vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries as well as the internal cerebral veins and superior sagittal sinus.The visualized portions of the paranasal sinuses are clear. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact.
1.Right cerebellopontine angle cistern mass is suspected to represent acoustic schwannoma.2.Exam is limited for the purposes of treatment planning.