항암치료 후 발생한 다발성 한공종 1예

A poroma is a benign adnexal neoplasm originating from the sweat gland duct. It usually presents clinically as a soft erythematous or flesh-colored papule, plaque, or nodule on the palms and soles. In most cases, poromas manifest as a solitary lesion, but rarely, multiple lesions have been reported and are defined as poromatosis. Although the pathogenesis is unclear, poromatosis is known to be associated with actinic damage, human papillomavirus infection, radiation therapy, or polychemotherapy. Herein, we describe a 53-year-old woman who had multiple erythematous papules on her feet for a year. She had a medical history of acute lymphoblastic leukemia and had undergone polychemotherapy with stem cell transplantation. To our knowledge, poromatosis related to chemotherapy is a rare entity, and our case could be attributed to the theory that using polychemotherapy can induce poromatosis. (Korean J Dermatol 2020;58(9):617∼619)