“…Key imaging characteristics include exudation, consolidation, thin-walled cavitary lesions, opacities, centrilobular nodules, and bronchiectasis predominantly involving the right middle lobe and lingula. [ 5 ] There are, however, several notable differences between LWS and Nocardia infection. Although high-resolution computed tomography (HRCT) of chest revealed abdominal-type bronchiectasis (i.e., bronchiectasis in the right middle lobe and lingular segments) in both diseases, cylindrical bronchiectasis is dominant in the majority of patients with LWS, whereas the nocardiosis has roughly the same proportion of cystic and cylindrical bronchiectasis.…”