Infant with cough and wheezing CXR AP (above) shows a round density projecting to the left of the 8th and 9th thoracic vertebral bodies. Axial CT without contrast of the chest (below) better shows a solid left paraspinal mass. In the operating room it was seen to lay outside the lung and to have its arterial supply coming from the aorta. The diagnosis was extralobar pulmonary sequestration.