Radiological examinations in patient with invasive pulmonary aspergillosis presenting discrete nodule. (A) Micro computed tomography image of the lung tissue with invasive pulmonary aspergillosis. The pilcrow (¶) and the section signs (§) are placed on the areas of monotonous high density and peripheral reticular structure, respectively. (B) 3D reconstruction images processed by applying 3D volume rendering software. Central monotonous high density and peripheral fine reticular pattern were observed.