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Alternative names
Pleural fluid cytologyDefinition Return to top
This is an examination of pleural fluid to detect the presence of malignant (cancerous) cells. The pleural space surrounds the lungs and normally contains only enough fluid to lubricate the pleura, the lining of the lung.How the test is performed Return to top
The test is performed by obtaining a sample of pleural fluid by a procedure called thoracentesis (a needle is inserted into the pleural space to draw off the fluid). The sample of fluid is examined under the microscope for the presence of abnormal cells.How to prepare for the test Return to top
Food or fluid is not restricted. Do not move, cough, or breathe deeply during the test.How the test will feel Return to top
The skin is cleansed, and shaved if necessary, around the insertion site. Local anesthetic to numb the site may be injected into the skin. There may be a pressure or sticking sensation as the needle enters the skin and pleural space. Inform the health care provider if shortness of breath develops after the test.Why the test is performed Return to top
The test is performed to determine the cause of a pleural effusion (fluid accumulation in the pleural space) or when cancer is suspected.Normal Values Return to top
Normal cells are seen.What abnormal results mean Return to top
In an abnormal test, malignant (cancerous) cells are present and may indicate a cancerous tumor. Breast cancer, lung cancer, and lymphoma are the types of tumor most frequently detected by this test.What the risks are Return to top
The risks include:
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Page last updated: 28 October 2004 |