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Computed tomography chest images in a patient with allergic bronchopulmonary aspergillosis. The mediastinal window (panel A) shows the presence of high-attenuation mucus (arrow head), which is visually denser than para-spinal skeletal muscle. The lung window (panel B) shows bronchiectasis (thin arrow). Other findings discernable include centrilobular nodules, tree-in-bud opacities and mosaic attenuation.
