Lymphoma presenting as a case of symptomless pleural effusion is a rare entity. We report a case of 56 years old average build male from northern India who is a known case of osteoporosis and vitamin B12 deficiency diagnosed few years before, came to Indraprastha apollo hospitals, New delhi for routine health check up without having any symptom. Clinical finding and chest Xray were suggestive of right sided pleural effusion. Pleural fluid was aspirated and fluid study was suggestive of lymphoproliferative disorder. We decided to evaluate this patient in detail to look for type of malignancy, systemic involvement and treatment as early possible. So, even symptomless pleural effusion on first presentation can be a malignancy.