Article ID Journal Published Year Pages File Type
5528139 Lung Cancer 2017 4 Pages PDF
Abstract

•Neurological immune-related adverse events of nivolumab are uncommon.•Time of onset may be early, late or after discontinuation of treatment.•Nivolumab might trigger production of paraneoplastic antibodies such as anti-Hu.

A 58-year-old man was being treated for squamous non-small-cell lung cancer with nivolumab. At the 17th of biweekly administrations he presented with global dysphasia, dysarthria and myoclonus in the right upper extremity. MRI showed multiple T2/FLAIR hyperintense lesions in the left hemisphere; lumbar puncture showed lymphocytic pleiocytosis in the CSF without identifiable pathogens. Hu antibodies were present in serum and CSF. Nivolumab was discontinued and corticosteroids were administered. The neurological symptoms gradually improved; MRI showed complete remission of cerebral lesions. After rechallenge with nivolumab his symptoms and cerebral lesions recurred, proving the causal relationship with nivolumab. After tapering of corticosteroids, a second relapse occurred.

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