The development of [[neurosurgical technique]]s to access anterior cranial vault lesions have evolved around attempts to safely reach the sella. In 1906, [[Victor Horsley]] reported the first successful series of pituitary tumor resection using a large semicircular scalp flap, extensive removal of cranial bone and gradual retraction of the brain
((Horsely V. Remarks on the surgery of the central nervous system. BMJ. 1890;2:1286–1292.)).