Melanoma in prepuberal children: Diagnostic and therapeutic challenges Cristina Larrosa; Antonio Torrelo; Luis Madero; Álvaro Lassaletta;

Asymptomatic haematuria as a sign of a botyroid Wilms tumour Silvia Escalada Pellitero; Daniel Azorin Cuadrillero; Luis Madero López; Carmen Hernández-Marqués;

Skin infiltration as a presenting sign of congenital leukaemia: presentation of two cases Marta Cabrero Hernández; Maitane Andión Catalán; Blanca Molina Angulo; Ana Castillo Robleda; Luis Madero López;