01504nas a2200205 4500000000100000008004100001260004300042100001300085700001200098700001100110700001000121700001100131700001000142245007400152856007600226300000700302490000700309520095700316022002501273 2019 d bSociety of Korean Leprologists (KAMJE)1 aJeong HH1 aHong SG1 aPark J1 aKim J1 aHeo EP1 aGo JW00aRelapsed Leprosy with Multiple Ulcerative Skin Lesions: A Case Report uhttps://synapse.koreamed.org/Synapse/Data/PDFData/0125KLB/klb-52-55.pdf a550 v523 aLeprosy is a chronic infectious and granulomatous disease caused by Mycobacterium leprae. It is treated with a multidrug therapy (MDT), which is consisted of dapsone, rifampicin, and clofazimine. However, there were relapsed leprosy associated with various predisposing factors; persisting organism, multiple involved skin lesions and nerves, HIV infection, monotherapy, inadequate and irregular therapy. Early or late relapses were observed in leprosy. Early onset relapses may occur due to insufficient treatment, and late relapses are probably with persistent bacilli and drug resistant organisms. Herein, we report on an interesting case of a 78-year-old man presented with relapsed leprosy associated with ulcerative skin lesions. The patient was diagnosed with lepromatous leprosy about 40 years ago, and he was treated with dapsone monotherapy and MDT. Our case is thought to have occurred due to persistent bacilli related to irregular therapy. a1229-1536, 2635-8239