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Newlands C. Fac Dent J 2012; 3: 158–165

Dentists are competent at carrying out opportunistic screening for oral cancer although an expert panel has questioned its efficacy (J Am Dent Assoc 2010; 141: 509–520). Nevertheless, dentists may not be comfortable to carry out screening for facial skin cancers. Cutaneous squamous cell carcinoma are slow growing and can have the appearance of a wart. Nevertheless 5% can metastasise. Some basal cell carcinomas can have a similarly innocent appearance, for example that of a scar. The 'ugly duckling mole' (an appearance different from the patient's other moles), must raise a suspicion of malignant melanoma. The ABCDE rule (asymmetry, border irregularity, colour variegation, diameter >6 mm, elevation/enlarging) should be applied. If a facial lesion gives rise to suspicion, the patient should be seen by a specialist within two weeks. This informative paper is illustrated with superb clinical photographs.