Presentation
Recent chest infection. Now gradually improving.
Patient Data
There is a well circumscribed rounded cystic mass in the right upper lobe. The walls are moderately thick and there is an air-fluid level.
Confirmation of the chest radiograph findings. Right upper lobe air-cyst with moderately thick walls - the previously demonstrated air-fluid level is no longer apparent.
The background lung parenchyma appears normal on these selected slices although movement artefact is present.
Case Discussion
The chest radiograph and CT confirm a cystic lesion in the right upper lobe. On the CXR, there is an air-fluid level - this has resolved by the time of CT.
The differential is that of a cystic lung lesion in a child. Features are of a post-pneumotic pneumatocele in a 2.5 year old child.