Immune checkpoint inhibitor-induced autoimmune limbic encephalitis with positivity for anti-Hu antibodies in a patient with small-cell lung cancer: A case report and literature review.

In recent years, there has been an increasing number of studies on neurological symptoms induced as paraneoplastic neurological syndrome (PNS) or neurological immune-related adverse events (irAEs) in patients treated with immune checkpoint inhibitors (ICIs). Herein, we report a 68-year-old male patient with small-cell lung cancer who developed memory impairment and autonomic nervous system dysfunction after three courses of carboplatin, etoposide, and durvalumab therapy. Brain magnetic resonance imaging revealed hyperintense areas restricted to the bilateral temporal lobes.