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A high resolution CT obtained at right lower lung field (retrospective retargeting, FOV 20 cm, 140KVP, 510 mAs, 512×512 matrix, bone algorithm) shows prominent interlobular septa (white arrowhead) and a central core structure (thin arrow), as well as a diffuse, ill-defined, increased hazy density. Increased density between the rib and the lung (thick black arrows) is due to pleural effusion.
