Background Cutaneous reactions after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines are poorly characterized. Objective To describe and classify cutaneous reactions after SARS-CoV-2 vaccination. Methods A nationwide Spanish cross-sectional study was conducted. We included patients with cutaneous reactions within 21 days of any dose of the approved vaccines at the time of the study. After a face-to-face visit with a dermatologist, information on cutaneous reactions was collected via an online professional

Introduction:Frontal fibrosing alopecia (FFA) in an entity characterized by the recession of the frontotemporal hairline (FTHL) with alopecic scarring change. In recent years there are numerous articles discussing the usefulness of dermoscopy for the clinical diagnosis of different types of scarring alopecia.Materials and Methods:We value 79 patients diagnosed with FFA, evaluating some trichoscopical findings described as typical for FFA: Absence of follicular opening, follicular hyperkeratosis, follicular plugs and erythema.Results:In a population of 79 women, 100% showed no follicular opening, 72.1% follicular hyperkeratosis, 66.3% perifollicular erythema and 44.8% follicular plugs. Thus, 100% of patients had at least one of the dermoscopic elements described as suggestive of FFA, 53% two of them, 45% three and 27%, all those elements. Perifollicular erythema was present in 95% of cases in which the disease was active.Conclusions:We consider that the presence of perifollicular erythema will be a direct marker of FFA activity.

Locoregional cutaneous metastases of melanoma (LCMM) represent a therapeutic challenge. Many treatment options are available with varying results. The combination of cryotherapy and imiquimod, two treatments with a possible synergistic effect, has not yet been described for treating this disease. In this paper, we aimed to show the response of LCMM to cryotherapy combined with topical imiquimod 5%. A retrospective review of 20 patients diagnosed with LCMM and treated with cryotherapy combined with topical imiquimod 5% between November 2000 and May 2014 at three institutions was performed. The locoregional cutaneous response was evaluated. After a mean of five sessions, 13 patients (65%) responded to treatment, eight (40%) of these completely and five (25%) partially. Systemic disease progressed in 16 (80%) patients. Cryotherapy followed by topical imiquimod 5% is simple to apply, has minimal adverse effects and provides response rates similar to other, more complex treatment options.

Oral oxybutynin for treating hyperhidrosis is effective and safe. Its side-effects are mild but frequent so we consider whether transdermal oxybutynin (considered to have a better side-effect profile) could be an alternative for treating hyperhidrosis. During 2015, a prospective study was conducted. Epidemiological variables, effectiveness (using the Hyperhidrosis Disease Severity Scale) and tolerance to transdermal oxybutynin were compiled concerning two different groups (patients previously treated or untreated with oral oxybutynin), at baseline, and at 3 and 12 months. Seven previously treated and six previously untreated patients were included. Five patients in the first group discontinued the treatment within 3 months. Of the two remaining patients, one reported ineffectiveness and the other obtained an excellent response but discontinued due to local irritation. Among the untreated patients, two showed no response and four experienced improvement (three with "partial response" and one with "excellent response"). All patients discontinued treatment within 12 months. No major adverse effects were observed. The absence of active metabolites after transdermal oxybutynin could result in less effectiveness than oral oxybutynin, although it is usually well tolerated. In conclusion, transdermal oxybutynin could have low effectiveness for the treatment of hyperhidrosis in patients following intolerance to oral oxybutynin but could provide good results in patients who have never tried systemic drugs.

The results of this study will be useful as a practical guide to choosing the best reconstruction technique for each of the facial cosmetic units.

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