Report of Allergic Reaction After Application of Botulinum Toxin.

Unlabelled: Botulinum toxin is a widely used treatment with satisfactory results, and it is relatively safe in the doses used for cosmetic procedures. The authors report a case of allergic reaction to Chinese botulinum toxin serotype A (CBTX-A). Although this is a rare adverse event, it is nonetheless clinically relevant to healthcare professionals.

Immunofluorescence testing in the diagnosis of autoimmune blistering diseases: overview of 10-year experience.

Background: Immunofluorescence testing is an important tool for diagnosing blistering diseases.

Objective: To characterize the immunofluorescence findings in patients diagnosed with autoimmune blistering skin diseases.

Methods: We retrospectively analyzed immunofluorescence results encompassing a 10-year period.

Dermoscopy revealing a case of Tinea Nigra.

Dermoscopy has being used over the past twenty years as a noninvasive aid in the diagnosis of innumerable skin conditions, including infectious diseases and infestations (Entodermoscopy).Tinea nigra is a superficial phaeohyfomycosis that affects mainly the glabrous skin of palms and soles. We describe a 14 year-old girl with a three-month history of an enlarging brown patch of her hand diagnosed as Tinea Nigra following clinical and dermoscopy examination.

Profile of Trypanosoma cruzi reactivity in a population at high risk for endemic pemphigus foliaceus (Fogo selvagem).

Fogo selvagem (FS) is an autoimmune bullous disease with pathogenic IgG autoantibodies recognizing desmoglein 1 (Dsg1), a desmosomal glycoprotein. In certain settlements of Brazil, a high prevalence of FS (3%) is reported, suggesting environmental factors as triggers of the autoimmune response. Healthy individuals from endemic areas recognize nonpathogenic epitopes of Dsg1, and exposure to hematophagous insects is a risk factor for FS.

Zoon's plasma cell balanitis: a report of two cases treated with pimecrolimus.

Unlabelled: Initially called (in French) "Balanoposthite chronique circonscrite benigne a plasmocytes", Zoon's plasma cell balanitis is a chronic inflammatory dermatosis affecting the glans and foreskin of uncircumcised men. The different treatment options for this condition often present partial results. Reports have shown therapeutic success using topical tacrolimus.