Pathological findings of hemorrhagic bowel syndrome (HBS) in six dairy cattlecases

[摘要] References(12)Six adult dairy cows clinically diagnosed as hemorrhagic bowel syndrome (HBS) were thesubjects of this study. The involved intestinal lesions were fixed in formalin andexamined macroscopically and histopathologically. Pathological examinations revealed largeintramural hematomas with necrotic foci, resulting in luminal obstruction. The mucosallayer in the lesions was detached from the intestinal wall, and there were no hemorrhagicchanges in the lumen. The intramural hematomas were sometimes covered with histologicallyintact mucosal layer. These pathological findings were not consistent with those of“intraluminal blood clots�? reported previously. Gram-positive andanti-Clostridium antibody-positive short bacilli were found inhemorrhagic necrotic areas. However, the exact relationship betweenClostridium spp. observed in the lesions and HBS remains unclear,because this bacterium is a normal inhabitant in cattle.

[学科分类] 兽医学

[关键词] Clostridium;HBS;hemorrhagic bowel syndrome;intramural hematoma