Fig. 2

Macroscopic findings in the abdominal and thoracic aorta during necropsy (a–b). a Abdominal aorta of CBW CET1027, showing an abundantly multifocal rough surface with localized tracts in the vascular tunica intima. These tracts vary in direction from straight to zigzag-shaped, differing in size and shape, and forming large, raised yellowish-white areas (asterisk). b Thoracic aorta of CBW CET1311, exhibiting tortuous endothelial proliferations and yellowish-white tracts (asterisk) compatible with parasitic migration pathways caused by larval forms and overlying areas