<prompt> Most common cause of pleural effusion in AIDS patientsKaposi sarcomaTBPneumocystis JiroveciMycoplasma  <response>: Ans. is a i.e., Kaposi sarcoma Ophthalmological diseases The most common abnormal findings on fundoscopic examination are cotton wool spots. CMV retinitis is the most severe ocular complication and occurs when CD4 T-cells count is less than 50ml. It typical presents as perivascular hemorrhage and exudae with Cottage-Cheese appearance. Acute retinal necrosis syndrome, also called progressive outer retinal necrosis PORN is caused by HSV and VZV Other manifestations are chorioretinitis by toxoplasma and P carinii, kaposi sarcoma of eyelid, and lymphoma. 