Q. A 35-year-old male patient presents to the emergency room with shortness of breath and chest pain. The patient has a history of lymphoma and recently underwent thoracic duct ligation surgery. On physical examination, there is decreased breath sounds on the left side, and a chest X-ray shows a left-sided pleural effusion. The pleural fluid has milky appearance and analysis analysis reveals a triglyceride level of 200 mg/dL and chylomicrones. What is the most likely diagnosis for this patient's symptoms?