A 65-year-old man with H/O 30 pack years of smoking presents with weight loss, cough with expectoration and hemoptysis for 40 days. Serum Na was found to be 124 mEq/L. Serum Ca -10 mg/dl. Chest X ray showed a hilar mass. Brush cytology and sputum was positive for tumor cells. What of the following subtypes of lung carcinoma does this this patient most likely have?