What sign describes the air lucency around the soft tissue mass in an aspergilloma?
Although slightly distorted by motion artifact, these images show a well formed cavitary lesion at the left lower lung lobe, at the dependent portion of which lies a soft tissue mass. A rim of gas is seen around the lesion and fibrotic changes surround the cavity.
A nodule is seen at the right middle lung lobe.
Both lungs show diffuse ground glass opacity.