title: Study of the histopathological types of cutaneous melanoma in Palmas-TO from 2001 to 2011.
abstract: BACKGROUND
  Cutaneous melanoma (CM) is considered serious for causing frequent metastasis, presenting high mortality, resistance to available therapies and incidences in laboring activity.
  
  
  OBJECTIVE
  To study the histopathological types of cutaneous melanoma in Palmas-TO from 2001 to 2011, according to risk factors, location of lesions, Clark levels and Breslow thickness.
  
  
  METHODS
  A descriptive, retrospective and quantitative research in reports of the Serviços de Anatomia Patológica in Palmas (SAPP) and Registro de Câncer de Base Populacional de Palmas (RCBPP).
  
  
  RESULTS
  The years of highest incidences were: 2004 (8 cases/17.8%), 2008 and 2011 (7 cases each/15.6%) and 2010 (6 cases/13.3%). Among the 45 cases studied, there were predominance in patients between 41 and 60 years old, women, caucasians, farmers, located in trunk, in situ type, superficial extensive and metastatic cutaneous, Clark levels I (20%) and IV (17.7%), Breslow thickness ≤1 mm (35.5%) and 2.01 to 4 mm (24.4%).
  
  
  CONCLUSIONS
  The most common histopathological types were: cutaneous melanoma in situ, superficial extensive and metastatic, followed by nodular cutaneous melanoma, and finally, by other forms. In this study, Clark levels and Breslow thickness pointed to greater importance of thin melanomas and sun exposure without appropriate protection in farmers.
authors.affiliation: Universidade Federal do Tocantins, Palmas, TO, Brazil.
authors.forename: Nilo Fernandes da
authors.initials: NF
authors.lastname: Costa
authors.affiliation: Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
authors.forename: Nurimar Conceição
authors.initials: NC
authors.lastname: Fernandes
authors.affiliation: Universidade Federal do Tocantins, Palmas, TO, Brazil.
authors.forename: Myrlena Regina Machado Mescouto
authors.initials: MR
authors.lastname: Borges
mesh_terms: D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001938:Brazil / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008545:Melanoma / Q000453:epidemiology* / Q000473:pathology*; D008875:Middle Aged; D009367:Neoplasm Staging; D012189:Retrospective Studies; D012307:Risk Factors; D017678:Sex Distribution; D012737:Sex Factors; D012878:Skin Neoplasms / Q000453:epidemiology* / Q000473:pathology*; D055815:Young Adult