211.HRCT所見が組織学的パターンを反映します。病変分布と慢性変化(=病理学的に線維化病変)を表すHRCT所見を意識して読影します。2.すりガラス影は組織学的に、①新規間質性病変(IPF急性増悪:症例1)や、②肺胞性病変(肺胞腔内への浸出物:症例1・DIPパターン:症例3)、③含気を残し完全に虚脱しない間質性病変(NSIPパターン:症例2)などを反映し、すべてではないですが、①・③は急性~亜急性変化を示すことが多くみられます。3.HRCTの読影では病変のパターンを認識できますが、HRCTのみで臨床診断に至りません。臨床診断名とパターンを示す言葉を正確に使い分けることが重要です。1) American Thoracic Society/European Respiratory Society International MultidisciplinaryConsensus Classification of the Idiopathic Interstitial Pneumonias. This joint statement of theAmerican Thoracic Society (ATS), and the European Respiratory Society (ERS) was adopted bythe ATS board of directors, June 2001 and by the ERS Executive Committee, June 2001. Am JRespir Crit Care Med 2002; 165: 277-304.2) Travis WD, Costabel U, Hansell DM, et al. An official American Thoracic Society/EuropeanRespiratory Society statement: Update of the international multidisciplinary classification ofthe idiopathic interstitial pneumonias. Am J Respir Crit Care Med 2013; 188: 733-48.3) 日本呼吸器学会 びまん性肺疾患診断・治療ガイドライン作成委員会.特発性間質性肺炎 診断と治療の手引き改訂第4版.本間栄.editor.東京:南江堂;2022.4) Raghu G, Remy-Jardin M, Myers JL, et al. Diagnosis of Idiopathic Pulmonary Fibrosis. AnOfficial ATS/ERS/JRS/ALAT Clinical Practice Guideline. Am J Respir Crit Care Med 2018; 198:e44-e68.5) Travis WD, Hunninghake G, King TE, Jr., et al. Idiopathic nonspecific interstitial pneumonia:report of an American Thoracic Society project. Am J Respir Crit Care Med 2008; 177: 1338-47.6) Iwasawa T, Takemura T, Ogura T. Smoking-related lung abnormalities on computedtomography images: comparison with pathological findings. Jpn J Radiol 2018; 36: 165-80.7) Konopka KE, Myers JL. A Review of Smoking-Related Interstitial Fibrosis, RespiratoryBronchiolitis, and Desquamative Interstitial Pneumonia: Overlapping Histology and ConfusingTerminology. Arch Pathol Lab Med 2018; 142: 1177-81.特発性間質性肺炎診断のポイント文献
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