Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there is an air-bronchogram in the right lower lobe.
Probably we are dealing with multifocal consolidations, but one might also consider the possibility of multiple ill-defined masses.
There is a peripheral distribution.
This patient had a several month history of chronic non-productive cough, that did not respond to antibiotics.
So we are dealing with the differential diagnosis of chronic consolidation.
The lab-findings were normal which makes bronchoalveolar carcinoma and lymphoma less likely.
There was no eosinophilia, which excludes eosinophilic pneumonia.
Biopsy revealed the diagnosis of organizing pneumonia (OP) also known as BOOP. #Clinical #Radiology #CXR #Peripheral #Distribution #Organizing #Pneumonia #OrganizingPneumonia #BOOP #RadiologyAssistant