 Although Perón had undergone a <unk> performed by the American surgeon George T. Pack , the cancer had <unk> and returned rapidly . She was the first Argentine to undergo chemotherapy ( a novel treatment at that time ) . Despite all available treatment , she became <unk> , weighing only 36 kg ( 79 lb ) by June 1952 . Evita died at the age of 33 , at 20 : 25 on Saturday , 26 July 1952 . Radio broadcasts throughout the country were interrupted with the announcement that " The Press Secretary 's Office of the <unk> of the Nation <unk> its very sad duty to inform the people of the Republic that at 20 : 25 hours Mrs. Eva Perón , Spiritual Leader of the Nation , died . " Ordinary activities ceased ; movies stopped playing ; restaurants were closed and patrons were shown to the door . 
