Fig. 3From: Cranial nerve monitoring in endoscopic endonasal surgery of skull base tumors (observing of 23 cases)Clinical case. Patient no. 19 in Table 1. a MRI before surgery. Giant cholesteatoma in a 33 years old female patient (she was previously operated three times). b Intraoperative photograph. BA basilar artery, BS brain stem, T tumor. c MRI 4 months after surgery. Partial removal of the tumorBack to article page