How I do it: retrosigmoid intradural inframeatal petrosectomy.
BACKGROUND
Lesions infiltrating the petrous temporal bone are some of the most complex to treat surgically. Many approaches have been developed in order to address these lesions, including endoscopic endonasal, anterior petrosectomy, posterior petrosectomy, and retrosigmoid.


METHOD
We describe in a stepwise fashion the surgical steps of the retrosigmoid intradural inframeatal petrosectomy.


CONCLUSION
The retrosigmoid intradural inframeatal petrosectomy may afford satisfactory exposure with limited drilling and minimal disruption of perilesional anatomical structures. It can provide excellent surgical results, especially for soft tumors, while minimizing surgical morbidity.
['Meling|Torstein R|TR|http://orcid.org/0000-0001-6595-0873', 'Zegarek|Greg|G|', 'Schaller|Karl|K|']
D002102:Cadaver D003399:Craniotomy D006801:Humans D010579:Petrous Bone
Retrosigmoid Petrosectomy Anatomy Brain tumor Neurosurgery Skull base Surgery