Anatomy for extended sinus surgery
Reviewed by Stuart Burrows

In the world of image guidance and pushing the boundaries of what can be achieved endoscopically the assessment and understanding of preoperative imaging is critical for success. This paper highlights the anatomical variations in the pterygopalatine and sellar regions. The authors have used CT angiography to image the skull base and sinuses of 118 patients and undertaken multiplanar reconstructions for their analysis. Their aim was to document the location of the pterygopalatine fossa and its associated communicating canals based on useful landmarks. The paper offers lots of measurements and describes variables and the relationship between key strictures. The main take home message is that there is huge variation and detailed assessment of each patient individually is vital. What the paper does offer is a good overview of the structures and it works well as an instructional paper. 

Location of pterygopalatine fossa and its relationships to the structures in sellar region.
Cheng Y, MD, Xu H, et al.
THE JOURNAL OF CRANIOFACIAL SURGERY
2015;26(6):1979-82