- 作者：Hiroki Kato ; Masayuki Kanematsu ; Hiromi Ono ; Ryuichiro Yano ; Tatsuro Furui ; Ken-ichirou Morishige ; Yuichiro Hatano
- 关键词：Ovary ; Fibroma ; Cyst ; Peripheral ; Exophytic
- 刊名：European Journal of Radiology
- 出版年：2013
- 出版时间：September, 2013
- 年：2013
- 卷：82
- 期：9
- 页码：e417-e421
- 全文大小：1139 K
Purpose
The purpose of this study was to assess MR imaging findings of ovarian fibromas with emphasis on intratumoral cyst formation.Materials and methods
MR images with a 1.5-T unit obtained in 17 consecutive patients (age range, 18-87 years; mean age, 58 years) with 17 histologically proven ovarian fibromas were retrospectively reviewed for the size, configuration, signal intensity of solid components, and presence of cystic degeneration and edema within tumor. Size, number, and location of intratumoral cysts were also assessed.
Results
The maximum diameter of tumors ranged from 3.3 to 19.1 cm (mean, 10.9 cm). Seven (41 % ) tumors were multinodular. On T2-weighted images, solid components of tumors were heterogeneously mixed hypo- and hyperintensity in 16 (94 % ) tumors. Nine (53 % ) tumors demonstrated cysts and 16 (94 % ) demonstrated edema within tumor. The maximum diameter of the largest cysts ranged from 1.0 to 13.2 cm (mean, 6.4 cm), and the number of cysts per tumor ranged from 1 to 60 (mean, 15.6). Of the nine tumors with cystic formation, the predominant location of the cysts was peripheral in five (56 % ), exophytic in two (22 % ), central (11 % ) in one, and diffuse in one (11 % ).
Conclusion
Peripheral or exophytic cyst formation may be characteristic MR imaging features with ovarian fibromas.