Throughout this year, some 31,200 cases of lung cancer in Spain, according to estimates by the Spanish Society of Medical Oncology (SEOM). It is one of the most common tumors and also one of the most devastating: in many cases, its ability to remain silent, without giving symptoms until the disease is advanced, hinders the therapeutic approach. Overall five-year survival it barely reaches 13%, although the prognosis of each patient depends a lot on the surname that that tumor carries.