Cardiac Radiography > Pathology > Pathologic Conditions > Lesions Presenting with Pulmonary Overcirculation


Lesions Presenting with Pulmonary Overcirculation

Although in theory one can see increased pulmonary blood flow in pregnancy and chronic anemia, for the most part this vascular pattern indicates a left to right cardiac shunt (see figure below). In the adult this is almost always from either an atrial septal defect or partial anomalous pulmonary venous return.

Pulmonary overcirculation in a patient with an atrial septal defect. The vessels are enlarged centrally and peripherally. 

 

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