title: Basal Cell Carcinoma of the Dorsal Foot: An Update and Comprehensive Review of the Literature.
abstract: BACKGROUND
  Ultraviolet radiation is a well-known risk factor for basal cell carcinoma (BCC). Therefore, the high incidence of BCCs in sun-exposed areas such as the head and neck is unsurprising. However, unexpectedly, BCCs on the sun-protected dorsal foot have also been reported, and tumor occurrence here suggests that other factors besides ultraviolet radiation may play a role in BCC pathogenesis. Because only few dorsal foot BCCs have been reported, data on their clinical features and management are limited.
  
  
  OBJECTIVE
  To perform an updated review of the literature on clinical characteristics and treatment of dorsal foot BCCs.
  
  
  METHODS
  We conducted a comprehensive literature review by searching the PubMed database with the key phrases "basal cell carcinoma dorsal foot," "basal cell carcinoma foot," and "basal cell carcinoma toe."
  
  
  RESULTS
  We identified 20 cases of dorsal foot BCCs in the literature, 17 of which had sufficient data for analysis. Only 1 case was treated with Mohs micrographic surgery. We present 8 additional cases of dorsal foot BCCs treated with Mohs micrographic surgery.
  
  
  CONCLUSIONS
  Basal cell carcinomas on the dorsal foot are rare, and potential risk factors include Caucasian descent and personal history of skin cancer. Mohs micrographic surgery seems to be an effective treatment option.
authors.affiliation: *School of Medicine, University of California San Diego, San Diego, California; †Carlsbad and Vista Dermatology, Vista, California; ‡Department of Dermatology, University of California San Diego, San Diego, California.
authors.forename: Tiffany Y
authors.initials: TY
authors.lastname: Loh
authors.forename: Ashley G
authors.initials: AG
authors.lastname: Rubin
authors.forename: Shang I Brian
authors.initials: SI
authors.lastname: Jiang
mesh_terms: D002280:Basal Cell Carcinoma / Q000453:epidemiology / Q000601:surgery*; D005534:Foot Diseases / Q000453:epidemiology / Q000601:surgery*; D006801:Humans; D015580:Mohs Surgery; D011379:Prognosis; D012307:Risk Factors; D012878:Skin Neoplasms / Q000453:epidemiology / Q000601:surgery*