**Nasopharyngeal Cancer – An Expanding Puzzle – Claiming for Answers**

E. Breda1,2, R. Catarino3 and R. Medeiros3,4,5

*1Otorrinolaringology Department - Portuguese Institute of Oncology, Porto, 2Health Sciences Department, University of Aveiro, 3Molecular Oncology Unit - Portuguese Institute of Oncology, Porto, 4ICBAS, Abel Salazar Institute for the Biomedical Sciences, Porto, 5Faculty of Health Sciences of Fernando Pessoa University, Porto, Portugal* 
