title: An unusually large eccrine poroma: a case report and review of the literature.
abstract: The eccrine poroma is an uncommon benign neoplasm previously thought to originate solely from the eccrine sweat gland. Initially believed to present on hairless acral surfaces, a more extensive distribution has been described. We report a case of a 55-year-old man with a slowly growing, 6-cm eccrine poroma on the medial aspect of his right foot of 40 years' duration. Clinicians should be aware that poromas can be of either eccrine or apocrine origin and can occur in areas other than acral skin. They also should understand the subclassification of the poroma family of neoplasms.
authors.affiliation: Department of Dermatology and Cutaneous Surgery, University of South Florida, Tampa, USA.
authors.forename: David J
authors.initials: DJ
authors.lastname: Casper
authors.forename: L Frank
authors.initials: LF
authors.lastname: Glass
authors.forename: Philip D
authors.initials: PD
authors.lastname: Shenefelt
mesh_terms: D003937:Diagnosis, Differential; D005528:Foot; D006801:Humans; D008297:Male; D008875:Middle Aged; D057091:Poroma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013544:Sweat Gland Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery