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Hemorrhagic cerebral metastases from thyroid cancer on T2*-weighted gradient echo MRI
Yoriko Murata1, Satoshi Itoh, Kazuo Morio
1Department of Tumor Radiology, Kochi Medical School, Nankoku, Kochi 783-8505, Japan. muratay@kochi-ms.ac.jp
Abstract:
We report a case of multiple hemorrhagic cerebral metastases from papillary thyroid cancer, with reference to T(2)*-weighted gradient echo (GRE) magnetic resonance imaging (MRI). Small metastatic nodules were recognized as round nodules with signal loss on T(2)*-weighted GRE MRI, and were more pronounced compared with other sequences. Lesions were later confirmed as hemorrhagic on T(1)- and T(2)-weighted MRI. T(2)*-weighted GRE MRI was a sensitive tool for early detection of metastases displaying hemorrhagic changes.
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