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Magnetic Resonance in Medical Sciences
Vol. 16 (2017) No. 3 p. 262-264

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http://doi.org/10.2463/mrms.cr.2016-0105

Case Reports

We report two cases with adnexal torsion to assess the mechanism of very strong signal intensity in ovarian lesions on DW imaging using MR imaging such as T2*-weighted imaging. MR imaging findings of the cases suggest that the very strong signal intensity on DW imaging is contributed to cytotoxic edema with or without vasogenic edema, as well as oxyhemoglobin or extracellular methemoglobin.

Copyright © 2017 by Japanese Society for Magnetic Resonance in Medicine

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