Tumoración craneal y paraparesia de extremidades inferiores

introduction: small cell lung cancer (oat.cell carcinoma) comes up usually with respiratory symptoms and/or radiological findings. clinical case: this clinical case corresponds to a patient with a metastatic skull mass and medullary compression syndrome as a debut of an oat cell lung cancer. conclusions: a very marked suspicion is necessary for the clinical early diagnosis of small cell lung cancer with limited disease. nevertheless, cases as the one reported here manifest its aggressiveness, with a high rate of dissemination at diagnosis and a high morbimortality.