Chorioangioma: antenatal diagnosis with fast MR imaging |
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Authors: | Kawamotoa S Ogawa F Tanaka J Ban S Heshiki A |
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Affiliation: | Department of Radiology, Saitama Medical School, 38 Morohongo Moroyama Iruma-gun, 350-0495, Saitama, Japan. satomik@wonder.ocn.ne.jp |
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Abstract: | We report a case of chorioangioma of the placenta, in which fast magnetic resonance imaging (MRI) was useful adjunct to ultrasonography for the antenatal diagnosis. MRI allowed clear demonstration of 6.8 x 6.0 cm solid placental mass along with hydramnios and anatomically normal fetus. On T(1)-weighted breath-hold spoiled gradient-echo (fast low-angle shot [FLASH]) images, chorioangioma was mostly isointense to the placenta, but had an area of high signal intensity near the base and at the periphery, suggestive of hemorrhage. On T(2)-weighted half-Fourier single-shot fast spin echo (HASTE) images, the mass showed heterogeneous high signal intensity, but had an area of low signal intensity near the surface. |
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