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Capecitabine-induced acute toxic leukoencephalopathy

Abstract : A 45-year-old woman was treated by Capecitabine (Xeloda®) during 6 days for breast cancer with metastatic bone lesions when she presented with nausea, headaches, muscle cramps, dysarthria and swallowing disorders. A stroke was first suspected. Brain CT was normal. MRI showed bilateral and symmetric high signal intensities of deep white matter, corpus callosum and corticospinal tracts on diffusion-weighted imaging and T2 fluid-attenuated inversion recovery (FLAIR) sequence, similar to 5-FU acute leukoencephalopathy. An acute toxic leukoencephalopathy was diagnosed prompting to discontinue capecitabine, which allowed a regression of the symptoms. Though acute toxic leukoencephalopathies with pseudo-stroke presentation have been reported with other chemotherapy agents such as methotrexate or 5-fluorouracil (5-FU), cases of leukoencephalopathy induced by capecitabine are less reported and less well known. This oral precursor of 5-FU is commonly used to treat colorectal, stomach or breast cancers. Neurotoxicity of other 5-FU derivates like cormafur and tergafur have rarely been depicted as well. Although 5-FU-induced leukoencephalopathy is known, the potential toxicity of its precursor should be acknowledged as well. Early detection of chemotherapy-induced toxicity by MRI is crucial as symptoms may be reversible to the condition that chemotherapy is immediately discontinued.
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Submitted on : Thursday, December 27, 2018 - 2:17:39 PM
Last modification on : Wednesday, December 9, 2020 - 10:52:15 AM



Michael Obedia, Delphine Leclercq, Johanna Wassermann, Damien Galanaud, Mélika Amor-Sahli, et al.. Capecitabine-induced acute toxic leukoencephalopathy. NeuroToxicology, Elsevier, 2017, 62, pp.1-5. ⟨10.1016/j.neuro.2017.05.001⟩. ⟨hal-01966091⟩



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