Prevalence of nevi, atypical nevi, and lentigines in relation to tobacco smoking

Background Melanocytic nevi have a complex evolution influenced by several endogenous and exogenous factors and are known risk factors for malignant melanoma. Interestingly, tobacco use seems to be inversely associated with melanoma risk. However, the association between tobacco use and nevi and lentigines has not yet been evaluated. Methods We investigated the prevalence of nevi, atypical nevi, and lentigines in relation to tobacco smoking in a cohort of 59 smokers and 60 age- and sex-matched nonsmokers, using a questionnaire and performing a total body skin examination by experts. Results No significant differences were detected between smokers and nonsmokers in the numbers of nevi, atypical nevi, and lentigines in sun-exposed areas (p = 0.966, 0.326, and 0.241, respectively) and in non-sun-exposed areas (p = 0.095, 0.351, and 0.546, respectively). Conclusion Our results revealed no significant differences in the prevalence of nevi, atypical nevi, and lentigines between smokers and nonsmokers in sun-exposed and non-sun-exposed areas.

Physician skin cancer screening among U.S. military veterans: Results from the National Health Interview Survey

Introduction Although military veterans are at increased risk for skin cancer, little is known about the extent to which they have been screened for skin cancer. The study objective was to examine the prevalence and correlates of physician skin cancer screening among U.S. military veterans. Methods Data were drawn from the National Health Interview Survey. The study sample consisted of 2,826 individuals who reported being military veterans. Receipt of a physician skin examination was measured using a single question that asked participants whether they had ever had all of their skin from head to toe checked for cancer by a dermatologist or some other kind of doctor. Results Less than a third (30.88%) of participants reported ever having a physician skin examination. Factors positively associated with receipt of a physician skin examination in a multivariable logistic regression analysis included: older age, greater educational level, non-Hispanic white race/ethnicity, having TRICARE (military) health insurance, greater skin sensitivity to the sun, and engagement in more sun protection behaviors. Conclusions The majority of military veterans have never been screened for skin cancer by a physician. Screening rates were higher among individuals with one or more skin cancer risk factors. Future research is warranted to test targeted skin cancer screening interventions for this at risk and understudied population.

Cutaneous Nevi in Down Syndrome Patients: Prospective study

Background: Down Syndrome (DS) has been described in association with various dermatoses,however, there is scanty information in the literature regarding the frequency of cutaneous nevi among Down syndrome patients. The objective of the study: To define the frequency of different cutaneousnevi in DS patients, andto precise their different phenotypes. Patients and methods: we prospectively examined 180 Down syndrome patients. All patients underwent full body skin examination noting the type, number, size, and distribution of different nevi. Results: Different types of nevi were noted among Down syndrome patients; café au lait macules, melanocytic nevocellular nevi, and Mongolian spot were the most frequent ones. Juvenile elastoma, Becker’s nevus, nevus spilus, labial melanocytic macule, and capillary vascular malformation were also seen. Conclusion: Various types of cutaneous nevi not previously described in Down syndrome, was observed in our patients such as Becker’s nevus, nevus spilus and Juvenile elastoma.

A STUDY OF DEMODEX PREVALENCE FOR PATIENTS HAVING FACE SKIN EXAMINATION AT DANANG HOSPITAL OF DERMATOLOGY AND VENEREOLOGY

Objective: Determine Demodex prevalence and survey relevant factors of patients having face skin examination at Danang Hospital of Dermatology and Venereology. Subject and method of the study: All patients having face skin examination and are appointed for shaving skin to find Demodex from October, 2018 to May, 2019. A cross-sectional study was conducted in 979 patients appointed for shaving skin to find Demodex. Result: The Demodex prevalence of patients having skin face examination at Danang Hostpial of Dermatology and Venereology is 29,1%. There was no connections between Demodex infection and gender, living area, sleeping area (p > 0,05). There were relationships between Demodex infection and age, skin type, dogs and cats feed, face cream, shaving skin, times of washing face (p < 0,05)