Lymphadenitis may occur alone or accompanied by lymphangitis. … Lymphadenitis and lymphangitis are frequent complications of a bacterial infection . … Lymphangitis means you have an infection in the lymph vessels and lymphadenitis is an infection of the lymph nodes. 
In herbivores, anthrax commonly presents as an acute septicemia with a high fatality rate, often accompanied by hemorrhagic lymphadenitis. … Severe hemorrhagic necrotizing lymphadenitis develops and spreads to adjacent mediastinal structures. … Released toxin causes hemorrhagic necrotic ulcers and mesenteric lymphadenitis, which may lead to intestinal hemorrhage, obstruction, or perforation.