A new approach to exfoliative cytology: A comparative cytomorphometric study

Area of Science:

• Oral pathology
• Cytopathology
• Oncology

Background:

• Early detection of oral premalignancy and malignancy is crucial for disease control.
• Simple screening aids offer a promising approach to identifying precancerous lesions.

Purpose of the Study:

• To evaluate and compare cytomorphometry and cellular atypia in keratinocytes from oral rinse and conventional exfoliative cytology.
• To analyze these parameters in normal oral mucosa and clinically diagnosed oral leukoplakia.

Main Methods:

• Compared oral rinse cytology with conventional exfoliative cytology in 55 oral leukoplakia cases and 55 controls.
• Evaluated Papanicolaou-stained smears for atypia and performed image analysis for cytomorphometry.
• Utilized statistical analysis including ANOVA and Tukey's HSD test for intergroup comparisons.

Main Results:

• Both methods detected atypia in 18 cases.
• Cellular size and area increased, while nuclear size and nuclear-to-cytoplasmic ratio decreased from atypical to normal groups.
• No significant differences in cellular parameters were observed between the two methods, except in normal controls.

Conclusions:

• Cytomorphometric analysis of oral rinse-collected keratinocytes is a valuable screening tool for oral leukoplakia.
• The oral rinse method is more convenient and produces higher quality smears compared to conventional exfoliative cytology.