Thoracentesis.
D000230:Adenocarcinoma / Q000662:veterinary; D000768:Anesthesia, General; D000818:Animals; D002371:Cat Diseases / Q000473:pathology; D002415:Cats; D004283:Dog Diseases / Q000473:pathology; D004285:Dogs; D004322:Drainage; D004653:Empyema / Q000662:veterinary; D008175:Lung Neoplasms / Q000662:veterinary; D008223:Lymphoma / Q000662:veterinary; D008479:Mediastinal Neoplasms / Q000662:veterinary; D008654:Mesothelioma / Q000662:veterinary; D008722:Methods; D010538:Peritonitis / Q000662:veterinary; D010997:Pleural Neoplasms / Q000662:veterinary; D010998:Pleurisy / Q000662:veterinary; D011677:Punctures / Q000009:adverse effects / Q000295:instrumentation / Q000662:veterinary*; D012867:Skin; D013909:Thorax