Drug-induced Linear IgA Bullous Dermatosis: A Case Report and Review of the Literature
Judith Lammer, Rüdiger Hein, Sophie Roenneberg, Tilo Biedermann, Thomas Volz
Linear IgA bullous dermatosis (LABD) is a rare subepidermal autoimmune blistering disease characterized by linear deposition of IgA along the basement membrane zone. Although most reported cases are idiopathic, there is a subset of patients with drug-induced LABD. Various drugs have been associated with the drug-induced form of the disease. This paper reviews the literature on drugs reported to elicit linear IgA dermatosis and its specific clinical presentation. In addition, a case report of a 77-year-old male patient with linear IgA dermatosis induced by vancomycin is described. The aim of this paper is to emphasize the need to include this differential diagnosis in cases of suspected adverse drug reactions, as well as to highlight the role of drugs in LABD.
Chronic nodular prurigo is characterized by multiple highly pruritic cutaneous nodules and a high impact on quality of life. The molecule substance P appears to play a significant role in the pathway of chronic pruritus. This randomized, double-blind, placebo-controlled, cross-over trial aimed to find out if using the drug aprepitant to block the substance P pathway could influence chronic pruritus in chronic nodular prurigo. However, the results showed no significant difference between aprepitant and placebo.