Pathologic Function
effusion Audio
ef·fu·sion [ ih-fyoo-zhuhn ]
Etymology:
Latin effundere = to pour out
Hence applied to any fluid in a serous cavity.
Definitions related to effusion:
  • A collection of fluid in a body cavity, which may be the result of a non-neoplastic disorder (e.g. heart failure) or a tumor (e.g. carcinoma of the lung).
    NCI
    U.S. National Cancer Institute, 2021
  • Abnormal collection of fluid in a body cavity.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • An abnormal buildup of fluid in a joint or tissue.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • An abnormal collection of fluid in hollow spaces or between tissues of the body. For example, a pleural effusion is a collection of fluid between the two layers of membrane covering the lungs.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.