title: Treatment of eccrine porocarcinoma with metastasis to the parotid gland using intensity-modulated radiation therapy: a case report.
abstract: BACKGROUND
  Cutaneous eccrine porocarcinomas are uncommon malignant tumors of the sweat gland.
  
  
  METHODS
  A 76-year-old Caucasian man presented to our hospital with a left temporal mass. We describe a case of eccrine porocarcinoma with metastasis to the parotid gland with special emphasis on the role of surgical resection and adjuvant radiation therapy.
  
  
  CONCLUSIONS
  Besides surgical resection, little is known about the role of adjuvant therapy in managing eccrine porocarcinomas. Radiation therapy should be considered within a multidisciplinary approach in patients with primary or recurrent eccrine porocarcinomas.
authors.affiliation: Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC, USA. youssefzaidan@gmail.com.
authors.forename: Youssef H
authors.initials: YH
authors.lastname: Zeidan
authors.forename: A Jason
authors.initials: AJ
authors.lastname: Zauls
authors.forename: Masha
authors.initials: M
authors.lastname: Bilic
authors.forename: Eric J
authors.initials: EJ
authors.lastname: Lentsch
authors.forename: Anand K
authors.initials: AK
authors.lastname: Sharma