Sunscreen application technique amongst patients with a history of skin cancer.

BACKGROUND: Data on how patients with a history of skin cancer apply sunscreen are lacking. OBJECTIVE: To characterize (1) gender differences in sunscreen application technique (quantity used, anatomic site coverage, and time allocated) and (2) differences in sunscreen application to unaffected skin versus previous skin cancer sites. METHODS: Subjects with a history of skin cancer were asked to apply sunscreen to their head as they normally would. The amount of sunscreen used and application time were recorded. Before and after photos were taken. Using Wood's lamp lighting, an anatomic site coverage score was rated on an ordinal scale (1 = 0-25%, 2 = 26-50%, 3 = 51-75%, 4 = 76-100% coverage). RESULTS: Males used 530 mg more sunscreen (p < 0.001) and applied approximately 5 mg/cm2 of sunscreen versus women, who applied 2 mg/cm2. The average coverage score was 3.27. Males were 7.61 times more likely to adequately apply sunscreen to the ears (p = 0.001). No differences were noted in application times. Coverage scores were similar for unaffected skin and previous skin cancer sites. LIMITATIONS: Observations in a controlled setting may not reflect usual sunscreen application practices. CONCLUSIONS: Overall, skin cancer survivors of both genders effectively applied sunscreen in line with recommended quantity guidelines, but men were significantly better at protecting their ears.

A Rare Case of Lichen Planus-Like Atopic Dermatitis Involving the Hands.

Lichen planus-like atopic dermatitis clinically mimics lichen planus and can pose a diagnostic challenge. We report a case of a 55-year-old African American woman who developed intensely pruritic papules and plaques on bilateral hands. Histological examination demonstrated acute spongiotic dermatitis with lymphocyte exocytosis into the epidermis. Taken together, a diagnosis of lichen planus-like atopic dermatitis was made. This case serves to highlight that lichen planus-like atopic dermatitis can develop on hands and that it presents as spongiotic dermatitis with lymphocyte exocytosis into the epidermis. Correlating the clinical presentation with histopathological findings will assist in establishing the diagnosis and guiding appropriate management.

Management of keratinocyte carcinoma - Special considerations in the elderly.

Keratinocyte carcinomas (KCs) are now an epidemic in The United States of America, especially in elderly patients. KCs, including basal cell carcinoma and squamous cell carcinoma, can lead to disfigurement and occasionally death. However, the lower mortality rate associated with KC compared with melanoma allows for increased flexibility in the selection of treatment. Flexibility in treatment is particularly important in the elderly given that this patient population often has medical comorbidities that should be considered. These patients may have multiple KCs, higher risk tolerance to recurrence, and different concerns about cosmetic outcomes compared with their younger counterparts. We review treatment options for KCs and how the selection of each option may affect the elderly patient.

Coprescription of Isotretinoin and Systemic Corticosteroids for Acne: An Analysis of the National Ambulatory Medical Care Survey.

Introduction: Isotretinoin treatment has been linked to flares of severe acne, which can be managed by the coadministration of systemic corticosteroids or prevented by beginning with a low dose of isotretinoin. To our knowledge, there are no estimates in the literature on the frequency of coprescription of isotretinoin and systemic corticosteroids. Objectives: We sought to quantify the estimated frequency of coprescription of isotretinoin and systemic corticosteroids and assess trends of the use of isotretinoin with systemic corticosteroids for acne as they relate to age, sex, race, insurance, and provider specialty. Methods: Data from the National Ambulatory Medical Care Survey (NAMCS) from 2003 to 2015, National Hospital Ambulatory Medical Care Survey Hospital Outpatient Departments (NHAMCS-OPD) from 2003 to 2011, and National Hospital Ambulatory Medical Care Survey Hospital Emergency Departments (NHAMCS-ED) from 2003 to 2014 were aggregated for this analysis. The number of prescriptions for isotretinoin and/or systemic corticosteroids was estimated by specialty (for NAMCS) and by survey type (for NHAMCS-OPD and NHAMCS-ED). Results: Among all first visits to a physician for acne (n=18,914,096), approximately 3.9 percent prescribed isotretinoin, 0.24 percent prescribed corticosteroids, and the remaining 96 percent prescribed neither drug. This was comparable to estimates for first visits to a dermatologist for acne (n=13,920,913), where approximately 4.2 percent prescribed isotretinoin, 0.32 percent prescribed corticosteroids, and the remaining 95 percent prescribed neither medication. Conclusion: Currently, isotretinoin and systemic corticosteroids are rarely prescribed together.

Coprescription of Isotretinoin and Tetracyclines for Acne is Rare: An Analysis of the National Ambulatory Medical Care Survey.

Introduction: Systemic therapy for acne can include tetracyclines or, for severe cases, isotretinoin. Concurrent use of tetracyclines and isotretinoin is known to increase the risk of development of pseudotumor cerebri (PTC). Objectives: Given their association with PTC when used concomitantly, this study sought to quantify the estimated frequency of the coprescription of isotretinoin and tetracyclines and to assess for trends in the use of isotretinoin and tetracycline for acne as it relates to age, sex, race, insurance, and provider specialty. Methods: Data from the National Ambulatory Medical Care Survey were analyzed over the years 2003 to 2013 regarding acne visits with isotretinoin and/or tetracycline prescriptions. Complex-samples logistic regression was used to estimate the effect of demographic variables on prescribing behavior. Results: Isotretinoin and tetracyclines were coprescribed in 0.35 percent of visits for acne. Dermatologists prescribed isotretinoin more frequently than nondermatologists. Patients younger than 36 years of age and men were more likely to receive treatment with isotretinoin or a tetracycline. No differences in prescribing patterns were found based on race or survey year. Conclusions: Concomitant exposure to tetracyclines and isotretinoin is exceedingly rare. The increased PTC risk associated with their concomitant use is well-known among dermatologists.

Patient Knowledge of Sunscreen Guidelines and Frequency of Physician Counseling: A Cross-sectional Study.

Background: Skin cancer and photodamage are problems commonly addressed by dermatologists. Despite the opportunities for chemoprevention with broad-spectrum sunscreen, there is little research investigating patient knowledge of proper sunscreen guidelines, or patient perception of physician counseling. Objective: The author sought to determine patient knowledge of the American Academy of Dermatology guidelines for proper sunscreen use and to obtain patient-reported rates of physician counseling regarding sunscreen. Design: We used a 12-question, multiple choice, anonymous survey to collect data. Setting: The study setting was a private dermatology clinic near Detroit, Michigan. PARTICIPANTS: Two hundred ninety- four adult patients presenting for routine office visits were included in the study. Results: About 59 percent of the subjects selected the recommended frequency of proper sunscreen use and 60 percent selected the recommended minimum sun protection factor. The minimum amount of sunscreen to cover the body, time of application before sun exposure, and time between reapplications of sunscreen did not receive a majority response. Differences in knowledge were seen between the sexes and skin types. Forty-four percent of patients previously received sunscreen counseling. Patients older than 40 years of age (39.3% vs. 18.4%, p=0.04), those who were fair skinned (62.5% vs. 23.8%), established patients (40.7% vs. 8.3%, p <0.0001), and those with a skin cancer (58.3% vs. 28%, p<0.0001) were more likely to report previous counseling. Conclusions: The majority of the study subjects never received counseling and lacked adequate knowledge of sunscreen guidelines. In order to obtain adequate primary prevention of skin cancer, it is essential to provide patients with further counseling and education on proper sunscreen use.