S Campainha1, C Nogueira2, F Costa3, A Sanches4, S Neves2. 1. Centro Hospitalar de Vila Nova de Gaia/Espinho, Pulmonology Department, Portugal. Electronic address: sergio.fernandes@chvng.min-saude.pt. 2. Centro Hospitalar de Vila Nova de Gaia/Espinho, Pulmonology Department, Portugal. 3. Centro Hospitalar de Vila Nova de Gaia/Espinho, Radiology Department, Portugal. 4. Centro Hospitalar de Vila Nova de Gaia/Espinho, Pathology Department, Portugal.