Imaging diagnosis of meningiomas of ethmoid sinuses / 中华放射学杂志

ABSTRACT

Objective To study the imaging features of meningiomas of ethmoid sinuses. Methods Six cases of meningiomas of ethmoid sinuses verified pathologically were analyzed retrospectively. Results CT scans of 6 cases exhibited huge cystic masses ( n =3), huge cystic solid masses ( n =2), huge solid mass ( n =1). The cystic walls were remarkable osteosclerosis. The density of solid masses were homogeneous, or heterogeneous with calcifications and cystic changes, and prominent contrast enhancement. MR images of 1 case (1/6) showed a cystic solid mass, the cystic portion was highsignalintensity on T 2WI and lowsignalintensity on T 1WI, while the solid mass was isosignalintensity on T 1WI and T 2WI. The solid portion was enhanced. X ray plain films of 3 cases (3/6) displayed ethmoid sinuses enlargement and high density. Conclusion For the meningiomas of ethmoid sinuses, CT finding was specific, MRI was helpful in differential diagnosis, and X ray plain film was of no qualitative value.