Exfoliative Cytology (Cellular Examination of Specimen)

What Is Exfoliative Cytology Used For?

Exfoliative cytology is often used to diagnose conditions like early-stage cancers (e.g., cervical, bladder, or lung cancer), infections (e.g., fungal or viral), or inflammatory diseases. It can also help monitor chronic conditions or screen for precancerous changes in certain tissues.

Cells are collected through a gentle scraping or swab of affected areas (e.g., cervix, bladder, or respiratory passages) or from body fluids like saliva or urine. The sample is then sent to a lab for microscopic examination.

The process is usually quick and painless. For example, a Pap smear (cervical cytology) involves a gentle swab of the cervix, while urine cytology may involve collecting a midstream urine sample. No anesthesia is typically needed.

Common specimens include cervical cells (Pap smear), bladder cells (urine cytology), respiratory cells (sputum or bronchial washings), or skin cells (from lesions).

The collected cells are stained and examined under a microscope to identify any abnormal cells, inflammation, or signs of disease.

Results may indicate normal cells, benign changes, inflammation, infection, or suspicious cells that warrant further testing (e.g., biopsies or additional imaging).

Abnormal findings could prompt additional diagnostic tests, such as biopsies, genetic testing, or follow-up imaging, depending on the suspected condition.