摘要:The authors report an unusual case of 60 year old male, who got admitted in a tertiary health care institute in Maharashtra (India) for chest pain and breathlessness and was provisionally diagnosed as 'pleural effusion with suspicion of malignancy'. Ho wever, the pleural fluid cytology, conducted later, assisted in diagnosing this case as 'Pleural Effusion due to Bancroftian Filariasis'. The patient responded well with oral medication o f diethyl carbamazine within a couple of days. The patient could not be follo wed up as he left the hospital against medical advice