A practical approach to the imaging interpretation of sphenoid sinus pathology.

The goal of this article is to provide a practical approach to the imaging interpretation of sphenoid sinus pathology. Basic anatomy and physiology is reviewed first. This is followed by a discussion of the imaging modalities used to evaluate the sphenoid sinuses and how to differentiate a benign from an aggressive lesion. Finally, disease entities are discussed, with attention to clinical presentation, expected imaging appearance, and treatment. Although the focus is on sphenoid sinus pathology, the concepts presented can be applied to interpretation of disease in any paranasal sinus.