title: Eccrine poroma on the helix: a rare anatomical presentation.
authors.affiliation: Department of Dermatology, JR Sapporo Hospital, N3 E1, Sapporo, 060-0033, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Horie
authors.affiliation: Department of Dermatology, JR Sapporo Hospital, N3 E1, Sapporo, 060-0033, Japan. itokei@jrhokkaido.co.jp.
authors.forename: K
authors.initials: K
authors.lastname: Ito
authors.affiliation: Department of Dermatology, JR Sapporo Hospital, N3 E1, Sapporo, 060-0033, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Hirata
authors.affiliation: Department of Dermatology, JR Sapporo Hospital, N3 E1, Sapporo, 060-0033, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Ito
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004428:Ear Neoplasms / Q000473:pathology*; D004431:Ear, External; D005260:Female; D006801:Humans; D057091:Poroma / Q000473:pathology*; D013544:Sweat Gland Neoplasms / Q000473:pathology*