Actinic cheilitis: histological, clinical and epidemiological characteristics
Keywords:
p—Photosensitivity disorders, actinic keratosis, cheilitis, ultraviolet rays, oral neoplasms.Abstract
Introduction: depletion of the ozone layer has brought about an increase in the incidence of skin lesions, including actinic cheilitis.
Objective: describe the histological, clinical and epidemiological characteristics of actinic cheilitis based on a review of recent literature.
Methods: a search was conducted in the databases PubMed, SciELO and Google Scholar using the descriptors cheilitis, keratosis, actinic, solar, and their counterparts in Spanish. The search included original papers, review papers, case reports, theses and books about the specialty preferably published from 2005 to 2014.
Results: actinic cheilitis is a potentially malignant condition induced by sun exposure and characterized by micro- and macrostructural alterations of the lip. The risk factors interacting with sun exposure are the skin phototype (light skin), smoking, gender (male), age and occupation (outdoor jobs). Histological alterations include epithelial dysplasia and solar elastosis, though their severity does not correlate with the degree of clinical seriousness. Patients with actinic cheilitis present color alterations, desquamation, ulceration and blurring of the vermillion border, among other signs and symptoms. On many occasions patients do not seek care during the early stages of the disease. As a result, diagnosis is made when the condition has already evolved into cancer. The diagnosis is basically clinic, with the support of the biopsy of lesions with moderate to severe characteristics. Current therapy includes surgery and medication, as well as innovative techniques like phototherapy. The most important strategy is no doubt the use of sunscreens, especially by the population at high occupational risk.
Conclusions: actinic cheilitis is a condition relevant to South American countries, since its risk factors are present in the daily activities of millions of workers from our region. It is therefore necessary to foster research aimed at improving its prevention, treatment and rehabilitation.
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