Efficacy of a hospital based cytology screening program

Area of Science:

• Gynecologic Oncology
• Public Health
• Cytopathology

Background:

• Cervical cancer screening is crucial for early detection and treatment.
• Mass population screening is often not feasible in developing countries.
• Alternative screening methods are needed to identify early-stage cervical cancers.

Purpose of the Study:

• To evaluate the yield of cytological screening in detecting cervical lesions.
• To assess the prevalence of cervical dysplasia and malignancy in a hospital-based population.
• To determine the feasibility of cytological screening as an alternative to mass screening.

Main Methods:

• Cytological screening of 117,471 women attending gynecologic outpatient departments in Delhi from 1976 to 1986.
• Analysis of cytodiagnosis results, including normal findings, inflammatory changes, dysplasia, and malignant lesions.
• Histological confirmation of cytologically diagnosed malignant cases and comparison with cancer clinic data.

Main Results:

• Cytological screening revealed 1.6% dysplasia and 0.2% malignant lesions.
• Of 213 malignant cases, 58.7% lacked clinical suspicion; 90.1% were histologically confirmed.
• A latency period of 15 years was observed from precursor lesions to invasive cancer, with median ages of 34.0 (mild/moderate dysplasia) to 47.8 (invasive cancer) years.

Conclusions:

• Cytological screening in hospital settings can effectively detect early-stage cervical cancers, even in the absence of clinical suspicion.
• This method offers a viable alternative for cervical cancer detection in regions where mass screening is not feasible.
• Early detection through cytological screening significantly improves the chances of curable treatment for cervical cancer.