Objective: Our purpose is to describe a method of resecting occipital pole gliomas through a keyhole lobectomy and share the patient outcomes of this technique.
Methods: We performed a retrospective review of data obtained on all patients who underwent resection of occipital pole gliomas by the senior author between 2012 and 2016. We describe our technique for resecting these tumors using a keyhole lobectomy and share the patient outcomes of this operation.
Results: Eight patients were included in this study. Four patients (50%) had not received previous surgery. One patient (13%) was diagnosed with a World Health Organization grade II tumor, and 7 patients (88%) were diagnosed with glioblastoma. Two tumors (25%) were left sided and 6 (75%) right sided. The median size of resection was 28 cm. The median extent of resection was 96%, and at least 90% of the tumor was resected in all cases. None of the patients experienced permanent postoperative complications. Temporary neurologic complications included 3 patients (38%) with encephalopathy and 1 patient (13%) with aphasia. There were no neurosurgical complications.
Conclusions: Our study provides details on the technical aspects of occipital keyhole lobectomies and gives the outcomes of patients who have received an operation for tumors in this uncommon location. Taking white matter tract anatomy into consideration, we show that the keyhole method can be applied to gliomas of the occipital lobe.
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