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?
Hilar mass suggests either squamous cell or small cell carcinoma. Hyponatremia due to SIADH is more likely in ors of Small cell. Hypercalcemia and cavitation are more likely in ors of squamous cell carcinoma
Squamous cell carcinoma
Adenocarcinoma
Small cell carcinoma
Large cell carcinoma
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