Sensitization to benzyl salicylate and other allergens in patients with frontal fibrosing alopecia.

Background: Contact sensitization is frequent among patients with frontal fibrosing alopecia (FFA) (52%-76%).

Objective: To evaluate the frequency of sensitization/photosensitization in an FFA population.

Methods: A population of FFA patients were patch tested (Spanish Contact Dermatitis Research Group [GEIDAC] baseline; cosmetic and fragrance series), and photopatch tested (sunscreen series).

Syringocystadenoma papilliferum associated with verrucous carcinoma of the skin in the same lesion: Report of four cases.

The association of syringocystadenoma papilliferum (SCAP) with verrucous carcinoma (VC) of the skin in the same lesion is a rare, but well-documented event. Although human papillomaviruses (HPV) have been proposed to have an etiologic role in the development of the verrucous proliferations associated with SCAP, most of the immunohistochemical and molecular studies have failed to show the presence of their genomic material in these lesions. We report a series of four cases of SCAP associated with VC in anogenital lesions.

Preservatives in Personal Hygiene and Cosmetic Products, Topical Medications, and Household Cleaners in Spain.

Introduction: Preservatives are added to cosmetic, household cleaning, and other industrial products to prevent the growth of microorganisms. Unfortunately, exposure to these substances can cause sensitization.

Material And Methods: Between January and June 2015, we analyzed the ingredients of 2300 products commercially available in Spain to identify the frequency of a wide variety of preservatives in different product categories.