Perianal Pseudoverrucous Papules and Nodules in an Elderly Patient

En Hyung Kim,1,2 Jun Su Park,1,2 Ji Su Lee,2 Ji Yeoun Lee1,2 1Department of Dermatology, College of Medicine, Chungbuk National University, Cheongju, Chungbuk, South Korea; 2Department of Dermatology, Chungbuk National University Hospital, Cheongju, Chungbuk, South KoreaCorrespondence: Ji Yeoun Lee, Department of Dermatology, College of medicine, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk, 28644, South Korea, Tel +82-43-269-6385, Fax +82-43-266-1698, Email jyl@chungbuk.ac.krAbstract: Pseudoverrucous papules and nodules is a reaction to irritation usually associated with urostomies. We report a case of perianal pseudoverrucous papules and nodules in an elderly patient who developed a characteristic diaper dermatitis after infrequent diaper change. The perianal papulonodular lesions improved after saline wet dressing and topical steroid application. These perianal pseudoverrucous papules and nodules indicate a unique type of irritant diaper dermatitis, which can be distinguished from Jacquet erosive diaper dermatitis and granuloma gluteale adultorum. Identifying this condition is important because pseudoverrucous papules and nodules can resemble more serious dermatoses, leading to unnecessary investigations being carried out.Keywords: diaper dermatitis, irritant dermatitis, Jacquet erosive diaper dermatitis, granuloma gluteale adultorum