" Acral Persistent Papular Mucinosis: is it an under-diagnosed disease? " Alvarez-Garrido, Helena; Najera, Laura; Garrido-Rios, Anastasia Alejandra; Cordoba-Guijarro, Suasana; Huerta-Brogeras, Maria; Aguado-Lobo, Marta; Borbujo, Jesus