Ovarian fibromas and cystadenofibromas: MRI features of the fibrous component

Journal of Magnetic Resonance Imaging : JMRI
E K OutwaterC J Dunton

Abstract

Ovarian fibromas and cystadenofibromas are neoplasms that share a similar distinctive tissue component of dense fibrous tissue. We sought to describe the MRI features of these neoplasms and to determine if the fibrous component shows distinctive characteristics. Fourteen patients in whom MR images performed with multicoil and fast-spin-echo images and who subsequently underwent surgery for resection of ovarian fibromas or cystadenofibromas were identified from two institutions. Five patients had ovarian fibromas, and nine patients had fourteen cystadenofibromas. 1.5-T MR studies used T1-weighted spin echo and multiplanar T2-weighted fast-spin-echo images, with fat saturation gadolinium-enhanced fast multiplanar gradient-echo images in seven patients. Studies were reviewed for findings of low (approximately equal to skeletal muscle) signal intensity solid components on T2-weighted images, characteristics of gadolinium enhancement, and associated endometrial findings. Images were obtained ex vivo from three adnexal surgical specimens with an 8-cm field of view and correlated with histology. All five of the fibromas showed predominantly very low signal intensity, similar to skeletal muscle, on T2-weighted images. Two of five fibro...Continue Reading

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