Fig. 2.

Pulmonary thrombi. Panel A: Case 4, Large occlusive pulmonary thrombus within the right main pulmonary artery (white arrow). Panel B: Case 4, Thrombus easily removed showing a predominately white thrombus that is molded in the anatomic pattern of the pulmonary vasculature. Panel C: Case 5, Loosely adherent pulmonary thrombus within a segmental pulmonary artery of the left lung (blue arrow). Panel D: Case 5, H&E 40x, microscopic image of the lung showing changes of diffuse alveolar damage as well as a fibrin microthrombus (yellow star). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)