Presentation
Presents with shortness of breath and atrial fibrillation. D-dimer +ve, ? PE
Patient Data
Age: 70
Gender: Female
From the case:
Kerley B lines on CT
Loading images...

Anterior scout view lung window

Linear interstitial lines in the lung periphery = Kerley B lines (actually fluid in the interlobular septa) due to mild pulmonary edema. Note the very big heart.
Case Discussion
Always look at the lungs on a CTPA as it may provide the cause of breathlessness other than PE!