Pulmonary Embolus (Close-up View)
Pulmonary Embolus (Close-up View)

Most of the image consists of a view of the lumen of a pulmonary artery and the origins of its segmental branches surrounded by a portion of pulmonary parenchyma.
At the arrow tip is a dark red thromboembolus lodged in the vessel.
(Description By:Melinda Sanders, M.D. )
(Image Contrib. by: UCHC )