A 61-year-old man comes to the clinic due to nonproductive cough and progressive dyspnea.  The patient's medical conditions include hypertension, hypercholesteremia and peptic ulcer disease.  He smokes 2 packs of cigarettes daily for the past 30 years.  On examination, there are decreased breath sounds and percussive dullness at the base of the left lung.  Other vital signs are normal. Abdomen is soft without tenderness. CT scan shows a left-sided pleural effusion and nodular thickening of the pleura. The plural fluid was bloody on thoracentesis. Biopsy shows proliferation of epithelioid-type cells with very long microvilli.