Low signal intensity in U-fiber identified by susceptibility-weighted imaging in two cases of progressive multifocal leukoencephalopathy

作者：Miyagawa Mai; Maeda Masayuki^*; Umino Maki; Kagawa Ken; Nakamichi Kazuo; Sakuma Hajime; Tomimoto Hidekazu

来源：Journal of the Neurological Sciences, 2014, 344(1-2): 198-202.

DOI：10.1016/j.jns.2014.06.018

• Progressive multifocal leukoencephalopathy
• U-fiber
• MRI
• Susceptibility-weighted imaging

Magnetic resonance imaging (MRI) is a useful tool for diagnosing and monitoring progressive multifocal leukoencephalopathy (PML). Although characteristic MRI findings of PML are well known, we noted a potential new finding for this disease on susceptibility-weighted imaging (SWI). Two patients with PML were studied and followed using MRI. SWI revealed low signal intensities in U-fibers adjacent to the white matter lesions of PML These findings progressed along with the disease progression. The cause underlying these findings remains unclear. This new finding suggests that SWI is useful for the diagnosis of PML It can provide a helpful clue in a clinical setting.

• 出版日期2014-9-15