title: Atypical porokeratosis developing following bone marrow transplantation in a patient with myelodysplastic syndrome.
abstract: Porokeratosis is an abnormal disease of keratinization of epidermis. It is clinically characterized by margins covered with keratin layer and it typically has an atrophied macule with a protruded, circular form. Histopathologically, it shows the findings of cornoid lamella. Risk factors for its development include organ transplantation, long-term use of corticosteroids, immunocompromised status, including AIDS, and exposure to ultraviolet light. We herein report a case of atypical porokeratosis in a 38-year-old man who developed porokeratosis involving multiple sites following bone marrow transplantation for myelodysplastic syndrome.
authors.affiliation: Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Sang Hee
authors.initials: SH
authors.lastname: Cha
authors.forename: Hyun Jeong
authors.initials: HJ
authors.lastname: Park
authors.forename: Jun Young
authors.initials: JY
authors.lastname: Lee
authors.forename: Baik Kee
authors.initials: BK
authors.lastname: Cho