Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Immune-related Colitis Induced by the Long-term Use of Nivolumab in a Patient with Non-small Cell Lung Cancer
Yuichiro YasudaYoshiko UrataRie TohnaiShoichi ItoYoshitaka KawaYuko KonoYoshihiro HattoriMasahiro TsudaToshiko SakumaShunichi NegoroMiyako Satouchi
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JOURNAL OPEN ACCESS

2018 Volume 57 Issue 9 Pages 1269-1272

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Abstract

We herein report a case of immune-related colitis induced by the long-term use of nivolumab. A 62-year-old Japanese man was treated with nivolumab at 3 mg/kg every 2 weeks for advanced lung adenocarcinoma. The patient was admitted to our hospital due to non-bloody watery diarrhea after the 70th dose of nivolumab. A biopsy specimen of the colon mucosa revealed evidence of colitis with cryptitis and crypt microabscesses. He was diagnosed with immune-related colitis and started on predonisolone 60 mg/day. Subsequently, his symptoms remarkably resolved. Consideration of immune-related adverse events up to several years after the initiation of nivolumab is important.

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© 2018 by The Japanese Society of Internal Medicine
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