Figure 3
From: Chlamydia in canine or feline coronary arteriosclerotic lesions
Heart, dog, case No. 9. Hyperplastic arteriosclerosis of a branch of coronary artery. Note the thickened vessel wall and extremely narrowed lumen (asterisk). In addition to being hyperplastic, some leiomyocytes of the vessel wall are also degenerated, seen by the clear vacuoles in the cytoplasm (arrows).