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| Imaging diagnosis of struma ovarii |
Department of Radiology, Ningbo Women & Children’s Hospital, Ningbo, 315012
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| Cite this article: |
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ZHANG Yu,MEI Haibing.. Imaging diagnosis of struma ovarii[J]. JOURNAL OF WEZHOU MEDICAL UNIVERSITY, 2015, 45(9): 683-.
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Abstract Objective: To analyze the MR and ultrasound (US) features of struma ovarii (SO). Methods: MR and US images of 8 patients with pathologically proved SO were retrospectively analyzed. Imaging features were compared with pathological results. Results: All tumors were unilateral, well-defined, mixed solid and cystic. The maximum sizes of the tumors ranged from 5.1 cm to 19.3 cm. MR appearances: The solid components were intermediate intensities on T2-weighted images and high intensities on diffusion-weighted images. The signal intensities of the cystic components were various. The areas of prominent low intensity on T2-weighted images were recognized in all cases, which were low intensities on diffusion-weighted images. Cyst walls, septa and solid components were well enhanced. Ultrasonographic appearances: The solid portion of tumors showed parenchymal echogenicity with “struma pearls” in 7 cases. Conclusion: Struma ovarii appeared as a smooth marginated mass with the areas of prominent low intensity on T2-weighted images on MR, and “struma pearls” on US images. The MR and US characteristic appearances of SO may be of great value for the diagnosis.
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Received: 05 December 2014
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