Immune Checkpoint Inhibitor-Induced Limbic Encephalitis during Treatment with Atezolizumab in a Patient with Small-Cell Lung Cancer: A Case Report and Review of the Literature

Paraneoplastic neurological syndrome (PNS) is associated with malignancies, including small-cell lung cancer. Recently, PNS cases among patients with small-cell lung cancer (SCLC) induced by immune checkpoint inhibitors have increased. We herein report a 66-year-old man with SCLC who developed disor...

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Bibliographic Details
Main Authors: Koki Nakashima, Yoshiki Demura, Kosuke Kurokawa, Toshihiro Takeda, Norihiro Jikuya, Masahiro Oi, Toshihiko Tada, Masaya Akai, Tamotsu Ishizuka
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Case Reports in Immunology
Online Access:http://dx.doi.org/10.1155/2022/9290922
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Summary:Paraneoplastic neurological syndrome (PNS) is associated with malignancies, including small-cell lung cancer. Recently, PNS cases among patients with small-cell lung cancer (SCLC) induced by immune checkpoint inhibitors have increased. We herein report a 66-year-old man with SCLC who developed disorientation, dysphagia, and gait disturbance after three courses of treatment with atezolizumab. Brain magnetic resonance imaging revealed a high-intensity area in the bilateral temporal lobes. Blood test results were positive for anti-Hu and anti-Zic4 antibodies, which led to the diagnosis of limbic encephalitis as PNS. Some symptoms improved with intravenous administration of steroids and immunoglobulins.
ISSN:2090-6617