title: Oxalate (Rumex venosus) poisoning in cattle.
abstract: Fifteen range cows died of oxalate poisoning caused by ingestion of Rumex venosus. Ecchymotic and petechial hemorrhages were prominent on the abdominal serosal surfaces. Approximately 2 L of thin, yellowish fluid was in the abdominal cavity, and mesenteric lymph nodes were enlarged and edematous. Other findings included catarrhal abomasitis; enteritis; pale, edematous kidneys; congested lungs; fatty infiltration of the liver; and nephrosis. In the kidneys, birefringent crystals resembling oxalate crystals were demonstrable only when frozen sections were examined.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000139:chemically induced* / Q000473:pathology; D005260:Female; D008099:Liver / Q000473:pathology; D010070:Oxalates / Q000506:poisoning*; D010939:Plant Poisoning / Q000473:pathology / Q000662:veterinary*
chemical_list: D010070:Oxalates