Pleural Effusion, Malignant |
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| Effusion, Malignant Pleural; Effusions, Malignant Pleural; Malignant Pleural Effusion; Malignant Pleural Effusions; Pleural Effusions, Malignant | |
| Presence of fluid in the pleural cavity as a complication of malignant disease. Malignant pleural effusions often contain actual malignant cells. | |