MRI features of ovarian fibromas: emphasis on their relationship to the ovary

Aim To evaluate the magnetic resonance (MR) imaging features of ovarian fibromas, emphasizing the presence and shape of the ovary on the same side of the fibroma. Materials and methods MR images from 23 patients with 24 histologically proven ovarian fibromas were reviewed by two radiologists. Eleven...

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Bibliographic Details
Published in:Clinical radiology 2008-05, Vol.63 (5), p.529-535
Main Authors: Oh, S.N, Rha, S.E, Byun, J.Y, Lee, Y.J, Jung, S.E, Jung, C.K, Kim, M.R
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Biological and medical sciences
Female
Fibroma - diagnosis
Humans
Investigative techniques, diagnostic techniques (general aspects)
Magnetic Resonance Imaging - methods
Medical sciences
Middle Aged
Ovarian Neoplasms - diagnosis
Ovary - pathology
Radiology
Retrospective Studies
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Summary:Aim To evaluate the magnetic resonance (MR) imaging features of ovarian fibromas, emphasizing the presence and shape of the ovary on the same side of the fibroma. Materials and methods MR images from 23 patients with 24 histologically proven ovarian fibromas were reviewed by two radiologists. Eleven were pre-menopausal and 12 were postmenopausal. The presence and shape of the ovarian tissue on the same side of the fibroma were evaluated on T2-weighted MR images. Results In 11 (46%) of the 24 ovarian fibromas, the ipsilateral ovary was detected on T2-weighted images. The ovary was crescent-shaped along the periphery of the fibroma in six (55%) of 11 fibromas and had a normal, oval shape in five (45%). Of these five tumours, the ovary was connected to the fibromas by a pedicle-like structure in three and was closely attached to the periphery of the fibromas in two. The ipsilateral ovary was detected in 10 (83%) of 12 fibromas in pre-menopausal patients, and in one (8%) of 12 fibromas in postmenopausal patients. There was a statistically significant difference ( p = 0.001) in the presence of detectable ipsilateral ovary between pre-menopausal and postmenopausal women. Conclusions Detection of the remaining ovary on the same side as the fibroma is not unusual on MRI, especially in pre-menopausal women, and the shape of the ovary may be normal in cases of fibromas with exophytic growth from the periphery of the ovary.
ISSN:0009-9260
1365-229X
DOI:10.1016/j.crad.2007.10.006