caa a22 4500 605494568 CHVBK 20210128100526.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00261-015-0510-0 doi (NATIONALLICENCE)springer-10.1007/s00261-015-0510-0 Can a T2 hyperintense rim sign differentiate uterine leiomyomas from other solid adnexal masses? [Elektronische Daten] [Michael Reiter, Ryan Schwope, Christopher Lisanti, Nancy Banks] Purpose: To investigate the incidence of high T2 signal rims surrounding leiomyomas, evaluate if a particular T2-weighted sequence is more effective in depicting this rim, and determine if this sign is useful in differentiating pedunculated leiomyomas from other solid adnexal masses. Materials and methods: In this retrospective study, two radiologists evaluated 233 T2 dark pelvic masses (223 uterine leiomyomas and 10 ovarian fibromas) in 60 women (mean age 47) on Magnetic resonance imaging for the presence of a high signal rim. Three different T2-weighted sequences were reviewed independently for uterine leiomyomas: half-Fourier acquisition single-shot turbo spin echo (HASTE), SPACE, and T2 with fat saturation (T2 FS). Only T2 FS images were available for 10 fibromas. A consensus review was conducted for discrepant cases. Statistical analyses were performed using Fisher's exact test, kappa test, and ANOVA Results: For 223 uterine leiomyomas, 23% (95% CI 17.8-28.9%) demonstrated a high T2 signal rim sign on T2 FS compared with 4.9% (95% CI 2.6-8.9%) for HASTE and 6.7% (95% CI 3.9-11.1%) for SPACE. The difference between the number of positive rims on T2 FS relative-HASTE and SPACE was statistically significant (p<0.001). For ovarian fibromas, 40% (95% CI 16.9-68.8%) were classified positive for a rim sign. Conclusion: A high T2 signal rim sign was present for up to 23% of uterine leiomyomas and the T2 FS sequence detected this rim sign most frequently. Up to 40% of ovarian fibromas can also have a T2 rim sign and, therefore, a solid adnexal mass with a T2 rim sign cannot be assumed to represent a pedunculated leiomyoma. Springer Science+Business Media New York, 2015 Leiomyoma nationallicence High T2 signal rim nationallicence Adnexal mass nationallicence Reiter Michael Department of Radiology, Stony Brook University Medical Center, HSC Level 4, Room 120 East Loop Road, 11794, Stony Brook, NY, USA aut Schwope Ryan Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA aut Lisanti Christopher Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA aut Banks Nancy Department of Pathology, Brooke Army Medical Center, San Antonio, TX, USA aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/8(2015-10-01), 3182-3190 0942-8925 40:8<3182 2015 40 261 https://doi.org/10.1007/s00261-015-0510-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-015-0510-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Reiter Michael Department of Radiology, Stony Brook University Medical Center, HSC Level 4, Room 120 East Loop Road, 11794, Stony Brook, NY, USA aut NATIONALLICENCE 700 1- Schwope Ryan Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA aut NATIONALLICENCE 700 1- Lisanti Christopher Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA aut NATIONALLICENCE 700 1- Banks Nancy Department of Pathology, Brooke Army Medical Center, San Antonio, TX, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/8(2015-10-01), 3182-3190 0942-8925 40:8<3182 2015 40 261