Imaging Features of Paranasal Sinus Osteoma

Osteomas are the most common benign sinonasal tumors, typically appearing as dense, well-circumscribed ivory-like lesions on CT, most often in the frontal sinus. They are usually asymptomatic and found incidentally, but large ones can obstruct sinus drainage.

• Educational case review illustrating the classic radiological appearance of a paranasal sinus osteoma on CT.
• While often incidental, radiologists should note the site and relationship to the sinus drainage pathway to identify potentially obstructive lesions.

RadPigeon summaries are original and for information only. They are not clinical advice.