An unusual presentation of metastatic adenocarcinoma of lung: a case report.

We report an unusual patient with primary adenocarcinoma of lung causing malignant pleural and pericardial effusions. The diagnosis was made only at autopsy as his staging computed tomography scan of chest was negative for an obvious mass lesion within the lung or pleura. Prior to his death, his symptoms were erroneously managed as left ventricular failure and community-acquired pneumonia.