A 72-year-old man is brought to the hospital due to a week of progressive confusion and lethargy. He has also had persistent cough for the past several weeks and had 2 episodes of blood in the sputum. The patient has a history of hyperlipidemia, well-controlled hypertension, and 48 pack-years of smoking. Lung auscultation reveals wheezing in the left lung. He is found to have hyponatremia with features suggestive of the syndrome of inappropriate antidiuretic hormone secretion. Chest x-ray reveals a mass in the upper lobe of the left lung. A bronchoscopic biopsy of the mass is performed, and the histopathology confirms an aggressive lung cancer. Which of the following is most likely to be seen in the biopsy sample of this patient?
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- Progressive confusion and lethargy for a week. - Persistent cough for several weeks. - Two episodes of hemoptysis (blood in sputum). - History of hyperlipidemia, well-controlled hypertension, and significant smoking history (48 pack-years). - Lung auscultation Show more…
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