Figure 4: Case 4 - (a) The cut surface of the right lung shows gray-white prominence of the lobular septa and bronchovascular connective tissues with occlusive, fresh arterial thrombus (arrow) and metastatic infiltration of hilar lymph nodes; the lymphatics around muscular artery is plugged by tumor emboli as seen on (b) Hematoxylin and eosin and (c) elastic van Gieson stained slides (×100)