Diffuse multibacillary leprosy of Lucio and Latapí is mainly reported in Mexico and Central America. We report a case in a 65-year-old man in Peru. He also had Lucio's phenomenon, characterized by vascular thrombosis and invasion of blood vessel walls by leprosy bacilli, causing extensive skin ulcers.
Keywords: Leprosy; Lucio’s phenomenon; Mycobacterium leprae; Peru; Peruvian Amazon; South America; bacteria; diffuse leprosy of Lucio and Latapí; lepromatous; multibacillary leprosy; vascular thrombosis.