Breeze R G, Petrie L
Vet Rec. 1977 Aug 13;101(7):130-1. doi: 10.1136/vr.101.7.130.
Thrombosis of the cranial vena cava in a cow was followed by the formation of aneurysms in the pulmonary arteries. Embolism, pulmonary hypertension and the development of a collateral venous and lymphatic circulation are the suggested causes of these uncommon arterial lesions.