Sodium low&cortisol highi& fatigue&weight loss. clear ct scan in apr15. symptoms persisted ct scan in feb 16 clear. could ct missed sclc. repeat scan?

Look outside lung: Yes CT scans can miss SCLC, especially if the scan is not a 'high resolution' scan with sufficient overlap. However, with 2 negative scans, you should look outside the lung. Head & neck cancers and esthesioneuroblastoma (tumor of nerves that sense smell) can cause this symptom pattern. Though rarer, SCLC can occur outside the lung, as well. A PET scan or whole body bone scan could help. TTYD.