Female, 64 years old, preoperative planning for tumor resection presenting with loss of hearing. A predominantly solid but slightly heterogeneously enhancing mass is evident at the left CP angle measuring 19 x 18 mm (image 47 series 301). The lesion projects minimally into the left IAC. The lesion does indent the adjacent medulla and middle cerebellar peduncle. Since the prior examination, lesion appears to increased in size by two or three millimeters. No additional enhancing lesions are seen. Brain parenchymal morphology is otherwise unremarkable. The ventricles are normal in size. Small mucous retention cysts are seen in the maxillary sinuses.
Redemonstration of a left CP angle mass with mild interval increase in size likely representing a schwannoma.