Acne characteristics in Latin American patients and the potential role of trifarotene.

BACKGROUND: Individualization of treatment based on acne type and severity, location, disease burden, and patient preference is required to maximize efficacy, safety, and adherence to therapy. Latin American populations have unique attributes that must be considered as part of this process to improve clinical success and achieve patient goals. Acne is more common among patients with darker skin phototypes, in whom it is often associated with postinflammatory hyperpigmentation and scarring-the most important acne sequelae-potentially due to more frequent and more severe underlying inflammatory processes in this population. DISCUSSION: These data argue for an early and proactive approach to managing acne in these patients with agents that target the inflammatory processes that underlie acne and its sequelae. As a class, retinoids offer a spectrum of activity that may be useful in addressing the unique needs of Latin American populations. CONCLUSION: Trifarotene, a novel, selective retinoid, has been evaluated in relevant patient populations.

International Dermoscopy Society criteria for non-neoplastic dermatoses (general dermatology): validation for skin of color through a Delphi expert consensus.

BACKGROUND: The International Dermoscopy Society (IDS) recently released a set of five basic dermoscopic parameters (vessels, scales, follicular findings, "other structures," and specific clues) encompassing a total of 31 subitems to standardize the use of dermoscopy in non-neoplastic dermatoses, yet they have been developed taking into account Caucasian/Asian skin, with consequent possible limitations if used in dark skin. OBJECTIVES: To validate the abovementioned criteria for the use in dark-skinned patients (phototypes IV-VI) through an expert consensus. METHODS: The two-round Delphi method was adopted, with an iterative process consisting of two rounds of email questionnaires. Potential panelists were recruited via e-mail from all over the world based on their expertise on dermoscopy of non-neoplastic dermatoses in skin of color. RESULTS: Twenty-two panelists took part in the validation process. All of the five originally proposed parameters and subitems reached agreement during the first round, aside from "follicular red dots." Additionally, during round 1, five new subitems were proposed (perifollicular scales distribution, follicular openings obliteration, broken hairs, eccrine pigmentation, and eccrine ostia obliteration), along with the possibility to change the denomination of parameter 3 (from "follicular findings" to "follicular/eccrine findings") and split it into two subparameters ("follicular findings" and "eccrine findings"). All such proposals reached agreement during the second round and therefore were included in the final list, for a total of 37 items. CONCLUSIONS: Although nearly all the dermoscopic criteria originally proposed by the IDS are applicable even to darker phototypes, several additional variables need to be assessed.

International registry of dermatological manifestations secondary to COVID-19 infection in 347 Hispanic patients from 25 countries.

BACKGROUND: The infection by coronavirus disease 2019 (COVID-19) has been associated with multiple cutaneous manifestations, although characterization of them in Hispanic patients with darker skin phototypes is lacking. The objective of this study is to characterize the clinical dermatological manifestations associated with COVID-19 infection in cases with few or without general symptoms in patients from Latin America. METHODS: Cross-sectional study using a questionnaire that was made for health professionals (physicians with a specialty in dermatology) to investigate dermatological lesions associated with COVID-19 infection in patients from 25 countries of Latin America. The survey was active from June 9 to July 30, 2020. RESULTS: In this study, information was collected from a total of 347 patients. We found a female gender predominance: 179/347 (51.6%). The mean age at presentation was 40.87 years. The most frequent dermatological manifestations were maculopapular rash and urticarial lesions, followed by papulovesicular lesions, vesicular lesions, chilblain-like lesions, papular lesions, ecchymosis, petechial purpura, pityriasis rosea-like lesions, pruritus, palmoplantar dysesthesias, transient livedo, acral necrosis, palpable purpura, livedo racemosa, and retiform purpura. As far as we know, there are no previous reports of pruritus and palmoplantar dysesthesias. CONCLUSIONS: This registry emphasizes skin manifestations as an important criterion for establishing the diagnosis of COVID-19 infection in Latin American countries. This information will be useful for the early identification of suspected cases by health professionals (dermatologists and nondermatologists) and will allow contact tracing to mitigate the impact on health systems at different levels.

Epitelioma basocelular perianal: un diagnóstico para pensar / Perianal basal cell carcinoma: a diagnostic to consider

El epitelioma basocelular (EB) constituye la neoplasia cutánea más frecuente. El 85-90 por ciento se localiza en regiones fotoexpuestas, atribuyéndosele a las radiaciones UV un rol preponderante en su etiopatogenia. Se presenta una paciente que desarrolló un epitelioma basocelular en la región perianal. Se destaca la localización poco frecuente, otros factores etiopatogénicos y diagnósticos diferenciales (AU)

Epitelioma basocelular perianal: un diagnóstico para pensar / Perianal basal cell carcinoma: a diagnostic to consider

El epitelioma basocelular (EB) constituye la neoplasia cutánea más frecuente. El 85-90 por ciento se localiza en regiones fotoexpuestas, atribuyéndosele a las radiaciones UV un rol preponderante en su etiopatogenia. Se presenta una paciente que desarrolló un epitelioma basocelular en la región perianal. Se destaca la localización poco frecuente, otros factores etiopatogénicos y diagnósticos diferenciales