Herpes Zoster as a Differential Diagnosis for Ischemia after Facial Hyaluronic Acid Filler.

The use of hyaluronic acid (HA) fillers for facial rejuvenation has grown widely and is now one of the most performed noninvasive cosmetic procedures. Viral infections can occur, albeit rarely. This report describes a 65-year-old female patient with significant fat tissue loss in the malar region who developed herpes zoster after receiving HA filler for facial volumization.

Acne vulgaris: prevalence and clinical forms in adolescents from São Paulo, Brazil.

Background: Acne is a common disease in adolescents, but there are no epidemiological data for acne in Brazil.

Objectives: To estimate the prevalence and degree of acne in adolescents from Sao Paulo and study socio-demographic factors, family history and lifestyle, associated with the disease.

Methods: Cross-sectional study with 452 adolescents aged between 10 and 17 (mean=13.

Prevalence of acne vulgaris in patients with Down syndrome.

Background/objective: Acne vulgaris exhibits a worldwide prevalence of up to 95% among adolescents. On the other hand, Down syndrome is an autosomal chromosomal disorder with associated dermatoses and a tendency to obesity. There are no data on its association with acne.

Dermabrasion for acne scars during treatment with oral isotretinoin.

Background: Oral isotretinoin is the criterion standard treatment for severe inflammatory acne associated with scar development. Atypical or exaggerated cicatrization related to oral isotretinoin was reported throughout the 1980s and 1990s. Dermabrasion for atrophic acne scar revision is not recommended 6 to 12 months from the end of oral isotretinoin treatment.