Pseudochylothorax is an odorless and milky pleural effusion with high levels of cholesterol and/or cholesterol crystals. Lipids in the effusion are suggested to accumulate in the pleural fluid as a result of pleural thickening and calcification due to chronic pleurisy. Tuberculous pleurisy, chronic romatoid pleurisy and theurapetic pneumothorax are the common causes of pseudochylothorax. The differential diagnosis of pseudochylothorax and chylothorax, which have completely different etiologies, pathogeneses and treatments, should be made and patients should be followed closely for tuberculosis reactivation. In this article, we presented a 70 years old man with pseudochylothorax in whose pleural fluid culture.