A case of drug-induced interstitial pneumonia possibly caused by S-1 treatment as postoperative adjuvant chemotherapy

DOI IR Web Site 3 References
  • KONDOU Eiji
    Department of Oral and Maxillofacial Surgery, Asahikawa Medical University
  • TAKEKAWA Masanori
    Department of Oral and Maxillofacial Surgery, Asahikawa Medical University
  • UTSUGI Chizuru
    Department of Oral and Maxillofacial Surgery, Asahikawa Medical University
  • YOSHIDA Masatsugu
    Department of Oral and Maxillofacial Surgery, Asahikawa Medical University
  • SHIBAYAMA Naohiro
    Department of Oral and Maxillofacial Surgery, Asahikawa Medical University
  • MATSUDA Mitsuyoshi
    Department of Oral and Maxillofacial Surgery, Asahikawa Medical University

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Other Title
  • 術後補助化学療法に使用したS-1が原因と思われる薬剤性間質性肺炎の1例
  • ジュツゴ ホジョ カガク リョウホウ ニ シヨウ シタ S-1 ガ ゲンイン ト オモワレル ヤクザイセイ カンシツセイ ハイエン ノ 1レイ

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Abstract

S-1 chemotherapy is widely used to treat head and neck cancer. Reports of interstitial pneumonia as a side effect of S-1 chemotherapy are very rare.<br>We report a case of interstitial pneumonia possibly caused by S-1 treatment as postoperative adjuvant chemotherapy.<br>We gave S-1 as postoperative adjuvant chemotherapy for mandibular gingival carcinoma in a 80-year-old woman. She had a fever 53 days after starting S-1 chemotherapy. The X-ray films and computed tomography （CT） showed reticular shadows in both lung fields, and the patient was given a diagnosis of interstitial pneumonia. The results of a drug-induced lymphocyte stimulation test were positive against S-1. The total dose of S-1 until the onset of symptoms was 3360 mg. We immediately started steroid therapy and withdrew S-1 chemotherapy, and then the symptoms remarkably improved, as did the abnormal findings on CT.<br>In conclusion, when a patient has a high fever and dyspnea during S-1 therapy, drug-induced interstitial pneumonia should be included in the differential diagnosis.

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