CK17 and p16 expression patterns distinguish (atypical) immature squamous metaplasia from high-grade cervical intraepithelial neoplasia (CIN III)
2007
Distinguishing Atypical Immature Metaplasia from High-Grade Cervical Neoplasia
Sample size: 75
publication
Evidence: moderate
Author Information
Author(s): Sigrid Regauer, O Reich
Primary Institution: Medical University Graz
Hypothesis
Can atypical immature metaplasia be reclassified into metaplasia and CIN III based on p16 and CK17 immunohistochemistry?
Conclusion
Immunohistochemistry for p16 and CK17 allows distinction between metaplasia and high-grade CIN.
Supporting Evidence
- 17 out of 20 cases of AIM were reclassified as metaplasia or CIN III based on immunohistochemistry.
- CIN III lesions showed strong p16 positivity and CK17 negativity.
- Immature metaplasia was characterized by strong CK17 staining and p16 negativity.
Takeaway
Doctors can tell the difference between two types of cervical lesions by looking at specific proteins in the cells.
Methodology
75 cervical biopsy specimens were analyzed immunohistochemically using antibodies to CK17, p16, and p63.
Limitations
The study may not account for all variations in cervical lesions and their classifications.
Digital Object Identifier (DOI)
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