Family history, body mass index, selected dietary factors, menstrual history, and risk of moderate to severe acne in adolescents and young adults.

Background: Genetic and environmental components may contribute to acne causation.

Objective: We sought to assess the impact of family history, personal habits, dietary factors, and menstrual history on a new diagnosis of moderate to severe acne.

Methods: We conducted a case-control study in dermatologic outpatient clinics in Italy.

Lichen planus pigmentosus-like ashy dermatosis.

Ashy dermatosis, also known as erythema dyschromicum perstans, is an idiopathic dermal melanosis of unknown etiology. We here describe an unusual case of 63-year-old Caucasian male with ashy dermatosis and skin lesion of lichen pigmentosus-like. No treatment was tried because the lesions were totally asymptomatic.

Bowenoid papulosis at the site of prior herpes progenitalis.

A 35-year-old dentist came to the authors' attention for papular and vegetating lesions that had appeared on his penile shaft over the last 2 months. The lesions differed in their features: pink and vegetating on the left side, brown and papular on the right side (Figure 1). The obvious clinical diagnoses of genital warts on the left and Bowenoid papulosis on the right were confirmed by punch biopsies, which showed epithelial hyperplasia with diffuse cell vacuolization (koilocytes)in the left biopsy and moderate nuclear dysplasia in the right one (Figure 2).