Figure 1.

A 65-year-old woman with metastatic ovarian cancer. (A) Frontal radiograph of the chest demonstrates a right pleural effusion. (B) Frontal radiograph of the chest demonstrates a new right hydropneumothorax immediately after right thoracentesis (white arrow). A pleural-based nodule is also noted (black arrow). (C) Coronal computed tomography scan of the chest obtained 1 day after the thoracentesis demonstrates incomplete expansion of the right lower lobe (white arrow), consistent with so-called vacu-thorax. Again demonstrated is the pleural-based metastasis (black arrow). The patient remained asymptomatic throughout her clinical course and did not have any further intervention.