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Cytologic evaluation

Cell evaluation; Cytology

 

Cytologic evaluation is the analysis of cells from the body under a microscope. This is done to determine what the cells look like, and how they form and function.

The test is usually used to look for cancers and precancerous changes. It may also be used to look for viral infections in cells. The test differs from a biopsy because only cells are examined, not pieces of tissue.

The Pap smear is a common cytologic evaluation that looks at cells from the cervix. Some other examples include:

  • Cytology exam of fluid from the membrane around the lungs (pleural fluid)
  • Cytology exam of urine
  • Cytology exam of saliva mixed with mucus and other matter that is coughed up (sputum)

 

References

Kumar V, Abbas AK, Aster JC. Neoplasia. In: Kumar V, Abbas AK, Aster JC, eds. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 7.

Stedman's Online Medical Dictionary. www.stedmansonline.com/content.aspx?id=mirC2500003494&termtype=t. Accessed Sept. 9, 2015.

 
  • Pleural biopsy

    Pleural biopsy - illustration

    In a pleural biopsy, a small piece of pleural tissue in the chest is removed with a needle. The biopsy may distinguish between a cancerous and noncancerous disease. It also can help to detect whether a viral, fungal or parasitic disease is present.

    Pleural biopsy

    illustration

    • Pleural biopsy

      Pleural biopsy - illustration

      In a pleural biopsy, a small piece of pleural tissue in the chest is removed with a needle. The biopsy may distinguish between a cancerous and noncancerous disease. It also can help to detect whether a viral, fungal or parasitic disease is present.

      Pleural biopsy

      illustration

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          Review Date: 8/13/2015

          Reviewed By: Frank A. Greco, MD, PhD, Director, Biophysical Laboratory, Edith Nourse Rogers Memorial Hospital, Bedford, MA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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