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Background Epidemiologic data suggest an increased risk of melanoma (MM) and non-melanoma skin cancer (NMSC) in persons with intense recreational sun-exposure such as marathon runners or surfers. Up to data little is known about the sun-exposure habits, sun-protection behaviours and risk factors for MM and NMSC among sailors. Objective The objective of this prospective, cross-sectional study was to investigate the sun-exposure and sun-protective habits and risk factors for skin cancer among sailors attending the 50° edition of Barcolana, the largest sailing race in of the world, which took place in October 2018 in Trieste, Italy as an integrative component of a public sun-prevention campaign. Methods The study consisted of 2 parts: (i) a self-administered questionnaire focusing on sun-exposure and protective habits and (ii) a free skin examination carried out by volunteer dermatologists. Participation was optional and anonymous, and open to visitors and sailors attending the event. Results Overall, 431 (52.4%) sailors and 391 (47.6%) visitors responded to the questionnaire, while a total of 437 individuals including 189 (43.3%) sailors and 248 (56.6%) visitors participated in the skin examination group. The majority of sailors reported a past history of severe sunburns (20.2%), applied sunscreen never (14.4%) to sometimes (45.7%) or only once daily (59%) on the face (55%) and shoulders (26%). Moreover, 14% of sailors had a personal history of non-melanoma skin cancer (NMSC). During the dermatological examination, suspicious lesions for skin cancer (including MM and NMSC) were identified in 37% of the sailors. Conclusion Our findings support the need to develop and promote primary and secondary prevention strategies to improve the sun-exposure and sun-protective habits among sailors.

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Dermatologists are often faced with the challenge of patients presenting with non specific symptoms such as itching and or erythema. These symptoms may be attributed to a number of diseases, many of which are trivial, and others even life-threatening. In order to establish the correct diagnosis, dermatologists must rely on good diagnostic tools and knowledge. Dermoscopy was introduced mainly for inspection of pigmented lesions, but its use has now also spread to non-melanoma skin cancer, inflammatory diseases, and almost any skin disease. This diagnostic technique also applies to skin infestation today, often offering the opportunity to rapidly identify new hidden features of parasites. This case report describes an unusual but representative case in which entomodermoscopy enabled a rapid diagnosis in a patient with a non specific erythematous patch. Whereas differential diagnosis of such skin manifestations could have been too laborious and misleading, dermoscopy easily allowed us to find a small parasite, later identified as Trombicula autumnalis.

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The basal cell carcinoma (BCC) assessment in dermoscopy is based on the recognition of specific characteristics synthesized and described as classical and non-classical criteria, but which may not necessarily present all at the same time. Consequently, a deep knowledge in detecting the aforementioned dermoscopic criteria is crucial in diagnosis. The aim of the study was to evaluate which criteria are more frequently recognized among a group of low-experienced dermoscopists when confronted with the difficult diagnosis of BCC with a diameter lower than 5 mm. We examined 100 BCC finding that data displays a full agreement only for one classical criterion, the lack of pigmented network (Fleiss' κ = 1), while among other classical criteria only arborizing vessels and ulceration exhibit a good agreement among observers (Fleiss' κ > 0.40). Analyzing non-classical criteria, only blue-whitish veil and blue in-focus dots show a good agreement among low-experience observers (Fleiss' κ > 0.40). It is evident that in small size BCC classic dermoscopic criteria are often substituted by non-classical criteria, which represent the neoplasm's early phase. Thus, it is of importance, especially for low-experience dermoscopists, to analyze even the non-classical criteria in order to obtain a diagnosis of early BCC. © 2016 Japanese Dermatological Association