PT  - JOURNAL ARTICLE
AU  - Yang, B.T.
AU  - Song, Z.L.
AU  - Wang, Y.Z.
AU  - Dong, J.Y.
AU  - Wang, Z.C.
TI  - Solitary Fibrous Tumor of the Sinonasal Cavity: CT and MR Imaging Findings
AID  - 10.3174/ajnr.A3485
DP  - 2013 Jun 01
TA  - American Journal of Neuroradiology
PG  - 1248--1251
VI  - 34
IP  - 6
4099  - http://www.ajnr.org/content/34/6/1248.short
4100  - http://www.ajnr.org/content/34/6/1248.full
SO  - Am. J. Neuroradiol.2013 Jun 01; 34
AB  - SUMMARY: SFT is a rare lesion of the sinonasal cavity. We retrospectively reviewed 5 patients with histopathologically proved sinonasal SFTs to determine their CT and MR imaging features. All patients underwent paranasal sinus CT and MR imaging. Four SFTs occurred in the nasal cavity, and 1, in the maxillary sinus. All SFTs had well-defined margins, and the mean maximum diameter was 55 mm. On nonenhanced CT, 5 SFTs appeared homogeneously isoattenuating to gray matter. The most common manifestations of bony involvement were bony remodeling and thinning. On MR imaging, 5 SFTs were isointense to gray matter on T1-weighted images, and the lesions were isointense in 3 and hypointense in 2 patients on T2-weighted images. The lesions showed heterogeneously marked enhancement on postenhanced MR images. Four patients underwent dynamic contrast-enhanced MR imaging, and the TICs showed a washout pattern. A familiarity with the imaging findings of sinonasal SFT may help to diagnose this entity. Bcl-2B-cell lymphoma 2HUHounsfield unitSFTsolitary fibrous tumorTICtime-intensity curve