[Lung cancer and paraneoplastic syndromes].

Paraneoplastic syndromes (PNS) are a relatively common manifestation of cancer, and in some cases they may be the first symptom. Lung cancer has the highest incidence of paraneoplastic syndrome. This fact is important considering a non explained endocrinological and neurological syndrome, it may facilitate a prompt diagnosis, and in some cases an adequate treatment. PNS evolution seems to be parallel to the subjacent cancer. PNS management requires specific measures, because in some cases, it may compromise the patient life. Neurological and endocrinological PNS associated to lung cancer are revised, and diagnosis and treatment of them are updated.