“…It is often difficult to determine the cause of pericardial or pleural effusion, particularly when this is the only primary lesion. Although pericardial/pleural effusion without lymphomatous features is rare in malignant lymphoma, patients with pericardial effusion prior to lymphadenopathy have been reported (1)(2)(3)(4)(5)(6). Here we describe a patient with T-cell lymphoma presenting with pericardial and pleural effusion as the initial and sole manifestations throughout the clinical course.…”