Lecture: The diagnosis of small round cell tumours in childhood Coordinator: Maria Teresa Seixas, São Paulo, Brazil Jesse J. Jenkins, Memphis, USA Maria Teresa Seixas, São Paulo, Brazil Jesse J. Jenkins, Memphis, USA Slide seminar: Non tumour pathology Coordinator: Ricardo Drut, La Plata, Argentina Bertha Valdovinos, Corrientes, Argentina Angeles Rodríguez, Montevideo, Uruguay Julio Oliva, Mendoza, Argentina Ricardo Drut, La Plata, Argentina Bertha Valdovinos, Corrientes, Argentina Angeles Rodríguez, Montevideo, Uruguay Angeles Rodríguez, Montevideo, Uruguay Julio Oliva, Mendoza, Argentina Lecture: Pulmonary pathology Coordinator: Benjamin Heck, São Paulo, Brazil Liliane Boccon-Gibod, Paris, France Benjamin Heck, São Paulo, Brazil Liliane Boccon-Gibod, Paris, France Round table: Congenital Heart Disease Coordinator: Márcia Ishigai, São Paulo, Brazil Vera Aiello, São Paulo, Brazil Mirlene S. P. Cernach, São Paulo, Brazil Célia M. C. Silva, São Paulo, Brazil Márcia Ishigai, São Paulo, Brazil Mirlene S. P. Cernach, São Paulo, Brazil Vera Aiello, São Paulo, Brazil Célia M. C. Silva, São Paulo, Brazil