Sterile talc powder

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Sterile talc powder is a mineral, usually used in a powdered form. In cancer treatment, sterile talc powder is used to prevent pleural effusions (an abnormal collection of fluid in the space between the lungs and the chest wall). Sterile talc powder is inserted into the space, causing it to close up, so fluid cannot collect there.

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This article includes text from the U.S. National Cancer Institute's public domain Dictionary of Cancer Terms