title: Aggregated dilated pores.
abstract: We report a 74-year-old Japanese man who had a 10-year history of approximately 20 open comedones crowded onto his lateral neck. An excisional biopsy revealed that each comedo was histologically a dilated pore. Dilated pores are usually solitary. The multiple and aggregated dilated pores seen in our case have never been reported.
authors.affiliation: Department of Dermatology, Yokohama Southern Hospital, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Konohana
authors.forename: T
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009333:Neck; D009506:Nevus / Q000175:diagnosis* / Q000473:pathology; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology