This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
Most common cause of pleural effusion in HIV" patients includes 
Select and explain. 
A. Mycobacterium tuberculosis infection, B. P Carinii infection, C. Lymphom, D. Kaposi's sarcoma
D: Kaposi's sarcoma
Answer: D: Kaposi's sarcoma 
Explanation: (D) Kaposi's sarcoma # AIDS> Pleural effusions are uncommon in such patients.> The most common cause is Kaposi's sarcoma, followed by parapneumonic effusion.> Other common causes are TB, cryptococcosis, and primary effusion lymphoma.> Pleural effusions are very uncommon with Pneumocystis carinii infection.