Pulmonary infarction: CT appearance with pathologic correlation.

The CT appearance of 12 proven pulmonary infarcts in 10 patients was analyzed and correlated with pathologic appearance. The diagnosis of pulmonary infarction was clinically suspected in only 2 of the 10 patients. A pleural based parenchymal density with convex, bulging borders and linear strands directed from the apex of the density toward the hilum was noted in each case (n = 12). Other features were a truncated apex (n = 10), a broad pleural base (n = 10), and scattered areas of reduced attenuation within the lesions (n = 7). This distinctive complex of findings on CT should raise a strong suspicion of pulmonary infarction.