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M 55, Smoker (30 PY). Centriloacinar emphysema and aggregation of macrophages. Centriloacinar emphysema and aggregation of macrophages (arrow). Intraalveolar pigment-laden macrophages (arrows). RB; Pigment-laden macrophages in and around bronchiole.
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Centriloacinar emphysema and aggregation of macrophages (arrow)
RB-ILD; Pigment-laden macrophages in and around bronchiole with interstitial fibrosis (arrows)