Pleural effusion in hepatic vena cava disease.

Pleural effusion is not uncommon in developing countries. It is usually considered to be due to tuberculosis and treated with anti-tubercular chemotherapy without much diagnostic workup. Hepatic vena cava disease (HVD), a disease caused by obliterative lesion of the hepatic portion of inferior vena cava induced by bacterial infection is common in developing countries. We report here the occurrence of pleural effusion in 10% of the cases of HVD. Four patients, one with acute and three with chronic HVD that presented with pleural effusion are described. Pleural effusion in HVD responded to treatment with antibiotic and diuretic. In developing countries HVD should be considered in the differential diagnosis of pleural effusion. It is postulated that bacterial infection and sodium retention resulting from acute caval obstruction are important in the pathogenesis of pleural effusion in HVD.