Cytology | definition of cytology by Medical dictionary, Cytology | definition of cytology by Medical dictionary, Cytology | definition of cytology by Medical dictionary, Exfoliative cytology | definition of exfoliative cytology by Medical dictio…, exfoliative cytology microscopic examination of cells desquamated from a body surface or lesion, done to detect malignancy or microbiologic changes, to measure hormonal levels, and for other purposes. The cells may be obtained by such procedures as aspiration, washing, smear, and scraping, and the technique may also be applied to secretions such as sputum, urine, abdominal fluid, prostatic secretions, .
In exfoliative cytology the cells for examination are obtained by : a. incision b. syringe c. needle d. scraping, In exfoliative cytology, cells shed from body surfaces , such as the inside of the mouth, are collected and examined. This technique is useful only for the examination of surface cells and often requires additional cytological analysis to confirm the results. OBJECTIVES After reading this lesson, you will be able to: zdescribe the principle of exfoliative cytology, and nucleomorphological variations in the exfoliated cells. Exfoliative cytology is based on the monitoring the exfoliated cells or cells flake off the mucosa wither through natural or artificial means [1]. It is implemented a prediagnostic tool in potentially malignant disorders like leukoplakia and oral cancers chiefly oral squamous, Exfoliative cytology is the microscopic examination of shed or desquamated cells from the epithelial surface usually the mucous membrane. It also includes the study of those cells that have been collected by scraping the tissue surface or collected from body fluids such as sputum, saliva, etc.
cells are put into a preservative fluid and the sam- ples are processed according to the manufactur – er directions, after staining using the Papanicolau method [1, 2].
