title: A brownish verrucous plaque on the intergluteal cleft: porokeratosis ptychotropica.
authors.affiliation: Department of Dermatology, College of Medicine, Catholic University of Daegu, 3056-6, Daemyung-4-Dong, Nam-gu, 705-718 Daegu, Korea. g9563009@cu.ac.kr.
authors.forename: Joon Soo
authors.initials: JS
authors.lastname: Park
authors.forename: In Yong
authors.initials: IY
authors.lastname: Kim
authors.forename: In Soo
authors.initials: IS
authors.lastname: Chae
authors.forename: Dong Kyun
authors.initials: DK
authors.lastname: Ko
authors.forename: Hyun
authors.initials: H
authors.lastname: Chung
mesh_terms: D001706:Biopsy; D002081:Buttocks; D005260:Female; D006801:Humans; D017495:Hyperpigmentation / Q000473:pathology* / Q000628:therapy; D008875:Middle Aged; D017499:Porokeratosis / Q000473:pathology* / Q000628:therapy; D012867:Skin / Q000473:pathology*; D012880:Skin Pigmentation; D014860:Warts / Q000473:pathology* / Q000628:therapy