Residents'corner April 2015. Editorial: What's new this month?

Behle V Department of Dermatology, Venereology and Allergology, University Hospital Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzburg, Germany.
Cabete J Dermatology Department. Hospital de Santo António dos Capuchos - Centro Hospitalar de Lisboa Central. Alameda Santo António dos Capuchos 1169-050, Lisbon, Portugal.
Durack A Dermatology department, Box 46, Addenbrooke's Hospital, Hills road, Cambridge, CB2 0QQ, UK.
Kuonen F Department of Dermatology and Venereology, Hôpital de Beaumont, Lausanne University Hospital Center, Av. de Beaumont 29, CH-1011 Lausanne, Switzerland.
Villani AP Dermatology Department, Hôpital Edouard Herriot, Lyon, France.
Martin-Gorgojo A Dermatology Department. General University Hospital «Gregorio Marañon». C/ Doctor Esquerdo 46, 28007 Madrid, Spain. Dermatology Department. Clinica Dermatologica Internacional and Clinica Ruber. Madrid, Spain.