MSFinals-5772

A 67-year-old woman presents with right-sided pleural effusion. Thoracentesis is performed and the pleural fluid analysis reveals the following results:
Pleural fluid Pleural fluid analysis Serum Normal value
Protein 2.5 g/dl 7.3 g/dl 6-7.8 g/dl
Lactate dehydrogenase (LDH) 145 IU/l 350 IU/l 100-250 IU/l
What is the probable diagnosis for this patient?