title: Basal cell carcinoma of trunk and extremities.
abstract: BACKGROUND
  Basal cell carcinoma is the most common malignancy in Caucasians. Information about basal cell carcinoma in the Mexican population is scarce.
  
  
  OBJECTIVE
  To determine the epidemiologic and clinical characteristics and treatment results of basal cell carcinoma located on the trunk and extremities of patients seen at the Instituto Nacional de Cancerología of Mexico.
  
  
  METHODS
  A retrospective study was performed of patients with confirmed diagnosis of basal cell carcinoma located on the trunk and extremities seen at the Instituto Nacional de Cancerología of Mexico between 1966 and 1993.
  
  
  RESULTS
  Ninety-one patients with basal cell carcinoma located on the trunk and extremities were found (6% of all patients with diagnosis of basal cell carcinoma). The median age was 64 years; 52% of the patients were women and 48% were men. A total of 119 basal cell carcinomas at these locations were diagnosed. The size of the skin tumor ranged from 0.3 to 22 cm (mean, 3.9 cm). Treatment results were evaluated in 62 patients (follow-up ranged from 24 to 240 months; mean, 80 months). Overall tumor control was accomplished in 95% of cases. Three patients died as a result of basal cell carcinoma.
  
  
  CONCLUSIONS
  Basal cell carcinoma in the Mexican population is not as infrequent as previously thought, although it is less commonly located on the trunk and extremities than in Caucasians.
authors.affiliation: Department of Skin, Soft Tissue, and Bone Tumors, Instituto Nacional de Cancerología, Mexico, México, D.F.
authors.forename: E
authors.initials: E
authors.lastname: Maafs
authors.forename: F
authors.initials: F
authors.lastname: De la Barreda
authors.forename: R
authors.initials: R
authors.lastname: Delgado
authors.forename: A
authors.initials: A
authors.lastname: Mohar
authors.forename: A
authors.initials: A
authors.lastname: Alfeirán
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D002280:Basal Cell Carcinoma / Q000453:epidemiology / Q000473:pathology* / Q000628:therapy; D003131:Combined Modality Therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D012189:Retrospective Studies; D012878:Skin Neoplasms / Q000453:epidemiology / Q000473:pathology* / Q000628:therapy; D016896:Treatment Outcome