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Massive Subchorionic Thrombosis Followed by Magnetic Resonance Imaging

Himoto, Yuki MD*; Okumura, Ryosuke MD, PhD*; Tsuji, Natsuki MD; Nagano, Tadayoshi MD, PhD; Fujimoto, Masakazu MD; Yamaoka, Toshihide MD, PhD§; Kohno, Shigene MD, PhD*

Journal of Computer Assisted Tomography:
doi: 10.1097/RCT.0b013e3182540ced
Abdominal Imaging

Abstract: Massive subchorionic thrombosis is a rare condition, defined as a large thrombus confined to the subchorionic space. It is associated with poor perinatal prognosis. However, prenatal diagnosis by ultrasonography is often difficult. We report a case of massive subchorionic thrombosis developing dermatomyositis after the delivery, followed by magnetic resonance imaging. Moreover, we review other 4 cases assessed with magnetic resonance imaging. Magnetic resonance imaging is very useful for confirmation of diagnosis and follow-up in combination with ultrasonography.

Author Information

From the Departments of *Radiology, †Obstetrics and Gynecology, and ‡Pathology, Kitano Hospital, Osaka; and §Department of Radiology, Kyotokatsura Hospital, Kyoto, Japan.

Received for publication February 21, 2012; accepted March 2, 2012.

Reprints: Himoto Yuki, MD, Kitano Hospital, Osaka, Japan (e-mail:

The authors report no conflicts of interest.

© 2012 Lippincott Williams & Wilkins, Inc.