341876.fig.002a
(a)
341876.fig.002b
(b)
341876.fig.002c
(c)
341876.fig.002d
(d)
Figure 2: (a) Endoscopic view onto the sellar floor with the primary vertical incision performed on the left. (b) All four incisions are performed with a small bony bridge left for the bone flap to be tilted away like a swinging door. (c) Sellar floor with bone flap removed for demonstration of intact dura. (d) Repositioned bone flap.