Medicine Which of the following tumors would most likely be associated with either hyponatremia or diffuse pigmentation of skin? A Renal adenocarcinoma B Small cell carcinoma of the lung C Hepatocellular carcinoma D Primary squamous cell carcinoma of the lung 💡 Explanation Which of the following tumors would most likely be associated with either hyponatremia or diffuse pigmentation of skin? ✓ Correct Answer: B. Small cell carcinoma of the lung