Fig. 4From: An overview of thoracic actinomycosis: CT featuresTransfissural extension of parenchymal actinomycosis in a 43-year-old man with high fever for 10Â days manifesting as chronic necrotising pneumonia. Chest CT scan in mediastinal window setting shows multifocal lobar consolidation containing a large low attenuation area in the right lower and middle lobe, which demonstrates extension across the fissureBack to article page