Hemorrhagic infarcts caused by mucin emboli mimicking brain purpura.

The macroscopic aspect of brain purpura was mimicked by multiple hemorrhagic infarcts arising in the vascular supply region of small arteries occluded by embolized mucin in a case of scar adenocarcinoma of the right lower pulmonary lobe, which had extensively permeated pulmonary blood vessels. The pathophysiology is discussed along with its clinical implications.