mal de caderas

noun

mal de ca·​de·​ras ˌmal-də-kə-ˈder-əs 

: an infectious disease of horses in South America caused by a protozoan parasite of the genus Trypanosoma (T. equinum) in the blood and characterized by rapid emaciation, anemia, blood-colored urine, paresis, and edema

called also derrengadera