First study the CXR. We know that in some cases there is an extra joint in the anterior part of the first rib which may simulate a mass. However this is also a hidden area where it can be difficult to detect a mass. In this case a small lung cancer is seen behind the left first rib. Notice that is is also seen on the lateral view in the retrosternal area. Continue with the PET-CT. #Clinical #Radiology #CXR #Lung #Cancer #LungCancer #Hidden #Apical #FirstRib #RadiologyAssistant
