| α-SMA | Alpha-Smooth Muscle Actin |
| DI | Dirofilaria immitis |
| EVG | Elastic Verhoeff’s Van Gieson |
| H&E | Hematoxylin and Eosin |
| IHC | Immunohistochemistry |
| IPEH | Intravascular Papillary Endothelial Hyperplasia |
| PCNA | Proliferating Cell Nuclear Antigen |
| VIP | Villus Intimal Proliferation |
| vWF | von Willebrand factor |