title: Hemorrhagic cerebral metastases from thyroid cancer on T2*-weighted gradient echo MRI.
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.
authors.affiliation: Department of Tumor Radiology, Kochi Medical School, Nankoku, Kochi 783-8505, Japan. muratay@kochi-ms.ac.jp
authors.forename: Yoriko
authors.initials: Y
authors.lastname: Murata
authors.forename: Satoshi
authors.initials: S
authors.lastname: Itoh
authors.forename: Kazuo
authors.initials: K
authors.lastname: Morio
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Sasaki
authors.forename: Hikaru
authors.initials: H
authors.lastname: Mizobuchi
authors.forename: Keiji
authors.initials: K
authors.lastname: Shimizu
authors.forename: Shoji
authors.initials: S
authors.lastname: Yoshida
mesh_terms: D000231:Adenocarcinoma, Papillary / Q000175:diagnosis* / Q000556:secondary*; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000556:secondary*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000473:pathology*