title: Porocarcinoma with perineural invasion.
abstract: Herein we present the case of a 58 year old woman with porocarcinoma of the left forehead with perineural invasion, diagnosed after recurrence of previously excised benign poroma. This case serves as a reminder of the potential of malignant degeneration within long-standing benign adnexal tumors as well as the spectrum of histological features that may be seen in porocarcinoma.
authors.affiliation: Ackerman Academy of Dermatopathology, Staten Island, New York, USA.
authors.forename: Ciara A
authors.initials: CA
authors.lastname: Maguire
authors.affiliation: Ackerman Academy of Dermatopathology, Staten Island, New York, USA.
authors.forename: Viktoryia
authors.initials: V
authors.lastname: Kazlouskaya
authors.affiliation: Staten Island Physician Practice, Staten Island, New York, USA.
authors.forename: Daniel
authors.initials: D
authors.lastname: Buchen
authors.affiliation: Ackerman Academy of Dermatopathology, Staten Island, New York, USA.
authors.forename: Patricia
authors.initials: P
authors.lastname: Heller
authors.affiliation: Ackerman Academy of Dermatopathology, Staten Island, New York, USA.
authors.forename: Dirk M
authors.initials: DM
authors.lastname: Elston
keywords: Perineural invasion; porocarcinoma; sweat gland neoplasm
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