Diagnostic value of MDCT and MRI in ovarian thecofibroma
10.3969/j.issn.1002-1671.2017.01.022
- VernacularTitle:卵巢卵泡膜-纤维瘤类肿瘤的MDCT和MRI表现分析
- Author:
Guoquan HUANG
;
Yan WANG
;
Jianwen WANG
- Keywords:
ovarian tumors;
fibrothecoma;
computed tomography;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2017;33(1):79-82
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the MDCT and MRI findings of the ovarian thecofibroma.Methods 15 patients with 16 lesions of ovarian thecofibroma confirmed by pathology after surgery were analyzed retrospectively.MDCT was performed in 1 2 patients and MRI in 8.Results 16 lesions were all unilateral,of which 1 patient had 2 lesions on the same side.10 lesions were located in the right side of ovary,while 6 ones were in the left side.The shape of more lesions was round or oval,and that of huge lesions was lobulated. 14 lesions were well-defined.These tumors were solid in 4 lesions,mixed in 9,and cystic in 3.The largest diameter of tumors ranged from 20 to 220 mm with a mean value of (89±58.29)mm.Plain MDCT showed the substantial part of tumors with iso-den-sity or slight lower density with the mean CT value of (40±8)HU.There was no or slight enhancement in comparison with the mean CT values of (49±9)HU on enhanced MDCT.5 lesions with isointensity and 3 with slight hypointensity on T1-weighted ima-ges,and all the tumors with heterogeneous signal on T2-weighted images were found.6 lesions appeared isointensity with obscure nebulous high signal on T2-weighted.The capsules of 5 lesions showed incomplete ring with lower signal.There was high signal ring outside of tumor capsule on T2-weighted in 5 lesions.All of 8 lesions were enhanced slightly,and the cystic portion was lower signal on T1-weighted images and high signal on T2-weighted images.Among all patients,ascites was found in 10 cases (66.7%)and other kinds of tumors of ovarian or uterus in 13 cases (86.7%).Conclusion MDCT and MRI findings of the ovarian thecofibroma have cer-tain characteristics,which is helpful for the diagnosis and differential diagnosis.
