title: Case Report of Patient With Erythropoietic Protoporphyria and Basal Cell Carcinoma Diagnoses.
abstract: BACKGROUND
  Basal cell carcinoma (BCC) is the most common nonmelanoma skin cancer. There is a clear association between BCC development and ultraviolet (UV) radiation. Erythropoietic protoporphyria (EPP) is an inherited porphyria disorder that is a result of protoporphyrin accumulation, typically manifesting with phototoxicity.
  
  
  METHODS
  We report a case of a 24 year-old man with both EPP and BCC diagnoses. At the age of 4 years, the patient was diagnosed with EPP. The patient presented with a BCC on his nose at age 24 years, despite sun avoidance as the primary treatment for his EPP diagnosis.
  
  
  CONCLUSIONS
  Consider the diagnosis of BCC in a patient with EPP, despite sun avoidance.
authors.affiliation: 1 College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
authors.forename: Shayne D
authors.initials: SD
authors.lastname: Reitmeier
authors.affiliation: 2 Department of Internal Medicine, College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.|3 Department of Medical Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada.
authors.forename: Brent
authors.initials: B
authors.lastname: Schacter
authors.affiliation: 2 Department of Internal Medicine, College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.|3 Department of Medical Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada.
authors.forename: Marni C
authors.initials: MC
authors.lastname: Wiseman
mesh_terms: D000328:Adult; D002280:Basal Cell Carcinoma; D006801:Humans; D008297:Male; D009666:Nose / Q000473:pathology; D046351:Protoporphyria, Erythropoietic; D012878:Skin Neoplasms; D055815:Young Adult
keywords: basal cell carcinoma; erythropoietic protoporphyria; porphyria