Cytophotometric studies in suspicious cervical smears

Area of Science:

• Gynecologic Pathology
• Cytogenetics
• Cervical Cancer Screening

Background:

• Cervical lesions diagnosed as "suspicious" by routine cytology require further investigation.
• Understanding the underlying cellular changes is crucial for accurate diagnosis and patient management.

Purpose of the Study:

• To analyze the DNA content of "suspicious" cervical cells using fluorescence-cytophotometry.
• To differentiate between benign and potentially precancerous "suspicious" cervical lesions based on DNA ploidy.

Main Methods:

• Review of Papanicolaou stained cervical smears diagnosed as "suspicious".
• Feulgen hydrolysis and Acriflavin-SO2 redyeing for fluorescence-cytophotometry.
• Analysis of DNA content and distribution patterns in "suspicious" cells.

Main Results:

• Nine of 14 cases showed polyploid DNA content (euploid levels: 2n, 4n, 8n) in "suspicious" cells.
• Five cases exhibited aneuploid DNA distribution patterns, similar to carcinoma in situ or severe dysplasia.
• Polyploidization may indicate inflammation or regeneration, while aneuploidy suggests precancerous changes.

Conclusions:

• "Suspicious" cervical smears with polyploid DNA patterns may indicate reversible conditions.
• "Suspicious" smears with aneuploid DNA patterns are more likely precancerous lesions requiring prompt surgical intervention.