A 68 - year - old Korean woman was consulted to the department of dermatology to evaluate ulcer - ated lesions on the perianal area, which developed about 3 weeks after a cadaveric renal transplantation. Histopathologic examination showed large atypical cytomegalic cells in the upper dermis. Polymerase chain reaction(PCR) study revealed positive cytomegalovirus(CMV) deoxyribonucleic acid(DNA) from the skin tissue. We herein present a case of cutaneous CMV infection presenting as perianal ulcers. (Ann Dermatol 14(1) 56-58. 2002).