Left-Sided Vanishing Lung Tumour: A Rare Case

摘要

In some cases of congestive heart failure, interlobar transudative pleural effusions may occur and appear like a tumour in the chest radiograph and disappear with diuretic therapy. They are called as Vanishing or Phantom or Pseudotumours and detected most often in the right lung. Left-sided vanishing lung tumour is very rare and we are not aware of similar previous case report in English literature. We report a left-sided vanishing lung tumour as a manifestation of cardiac failure in an elderly man who presented with intermittent swelling of feet during follow-up after coronary bypass surgery. Addition of oral diuretic (furosemide) led to rapid symptomatic relief and complete resolution of interlobar effusion in the left oblique fissure within two months. The follow-up computed tomography of chest showed left-sided small residual pleural thickening near left oblique fissure as possible cause of unusual site of vanishing tumour in our case.