Archives of the AFIP -- RadioGraphics 1996; 16: 131-148

Figure Legend | Panel A | Panel B

Figure 15: Choriocarcinoma in a 26-year-old woman. Panel A Axial gadolinium-enhanced T1-weighted MR image shows a large left-sided lesion and a smaller right-sided focus (curved arrow), both with high signal intensity. The large lesion has a thin low-signal-intensity rim (straight arrows), suggesting the possibility of subacute hemorrhage. Panel B Axial T2-weighted image obtained at a slightly different level (the right-sided lesion is not seen) accentuates the low-signal-intensity rim ("blooming"; arrows), a finding caused by the paramagnetic effect of the hemosiderin deposition.

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