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薬剤リンパ球刺激試験(DLST)は,わが国では広く薬剤性肺障害(DILD)の診断に用いられてきた.しかし,薬剤とDILDの関連性を評価するためには,薬剤負荷試験(DCT)が最も信頼できる方法である.筆者らは,DLSTとDCTの関連性を検討したが,DLSTの結果とDCTの結果には関連性がなかった.さらに,DLSTの偽陽性あるいは偽陰性のために真実が見逃される可能性があり,DILDにおけるDLSTの解釈には注意が必要である.
The DLST (drug-induced lymphocyte stimulation test) has been widely used for diagnosing DILD (drug-induced lung disease) in Japan. However, a DCT (drug challenge test) is the most reliable method for assessing the relationship between the drug and DILD. We examined the correlation between DLST and DCT. The results of the DLST didn't correlate with the results of the DCT. Because of false positives or false negatives in the DLST, the truth may be missed. Care must be taken to interpret the DLST for the diagnosis of DILD.
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