Sunscreen lotions in the dermatological prescription: review of concepts and controversies.

The skin is regularly exposed to several environmental aggressions, including solar radiation, whose biological effects can induce sunburn, dyschromia, skin aging and cancer. Among the photoprotection measures, sunscreens comprise a relevant part of the strategy aimed to prevent solar radiation damage and, for effective action, the patient must adhere to the product use and the latter, in turn, must follow technical parameters to promote adequate protection. This review article brings together the most current and relevant concepts about photoprotection for dermatological use, including the challenges for their formulation, the risks of certain photoprotective active substances for individual and environmental safety and the importance of stringency in determining the product efficacy, considering the regulatory aspects, highlighting relevant differences between Brazil and other countries.

Demographic, Clinical, and Pathologic Features of Patients With Cutaneous Melanoma: Final Analysis of the Brazilian Melanoma Group Database.

Purpose: National epidemiologic data on melanoma are scarce in Brazil. The current work presents final demographic, clinical, and pathologic results from the Brazilian Melanoma Group database to detail how patients with melanoma present at diagnosis.

Methods: The online database includes patients diagnosed between 1982 and 2015 and evaluated at their centers of origin between 2001 and 2016.

Lenalidomide in the management of eosinophilic dermatosis of hematological malignancy.

Eosinophilic dermatosis of hematological malignancy is a paraneoplastic skin eruption associated with chronic lymphocytic leukemia and other B-cell malignancies. It clinically resembles an insect bite reaction and it can precede the symptoms of the hematological malignancy or be related to a more aggressive course. Different treatments have been proposed, but partial response and recurrence are frequent.

Hereditary melanoma: a five-year study of Brazilian patients in a cancer referral center - phenotypic characteristics of probands and pathological features of primary tumors.

Background: Approximately five to 10% of all melanomas occur in families with hereditary predisposition and the main high-risk melanoma susceptibility gene is the CDKN2A.

Objectives: To describe, after a five-years study, the clinical data of patients (probands) from familial melanoma kindreds, and the pathological characteristics of their melanoma.

Methods: The inclusion criteria were melanoma patients with a family history of melanoma or pancreatic cancer (first- or second-degree relatives) or patients with multiple primary melanomas (MPM).

Association of melanoma with intraepithelial neoplasia of the pancreas in three patients.

Melanoma and pancreatic cancer are two low frequency types of cancer. In this study, three patients who developed both melanoma and intraepithelial neoplasia of the pancreas were tested for CDKN2A mutations and deletions, and investigated for rare germline copy number variations (CNVs). The three patients were negative for CDKN2A point mutations and intragenic deletions.

Leprosy reversal reaction as immune reconstitution inflammatory syndrome in patients with AIDS.

We report 2 instances in which reactional borderline leprosy manifested itself as an immune reconstitution phenomenon in patients with acquired immunodeficiency syndrome. We discuss the clinical, laboratory-based, histopathologic, and immunohistochemical characteristics of both patients. Furthermore, we review similar reports from the literature.