Fig. 1

CECT of the Chest revealing. a Extensive right upper lobe consolidation, bronchocentric consolidation with air bronchogram, band like and peripheral consolidation and b the “reversed halo” sign of focal perilobular consolidation with central ground-glass opacities suggestive of organizing pneumonia. c, d CECT of the Chest before discharge revealing marked resolution of the organizing pneumonia after cessation of transtuzumab